Revert "exec: limit system memory size"
[qemu.git] / vl.c
blob4ad15b808c0fcfe0a09a9df806f1bf3ed3ce3cc9
1 /*
2 * QEMU System Emulator
4 * Copyright (c) 2003-2008 Fabrice Bellard
6 * Permission is hereby granted, free of charge, to any person obtaining a copy
7 * of this software and associated documentation files (the "Software"), to deal
8 * in the Software without restriction, including without limitation the rights
9 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
10 * copies of the Software, and to permit persons to whom the Software is
11 * furnished to do so, subject to the following conditions:
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
22 * THE SOFTWARE.
24 #include <unistd.h>
25 #include <fcntl.h>
26 #include <signal.h>
27 #include <time.h>
28 #include <errno.h>
29 #include <sys/time.h>
30 #include <zlib.h>
31 #include "qemu/bitmap.h"
33 /* Needed early for CONFIG_BSD etc. */
34 #include "config-host.h"
36 #ifndef _WIN32
37 #include <libgen.h>
38 #include <sys/times.h>
39 #include <sys/wait.h>
40 #include <termios.h>
41 #include <sys/mman.h>
42 #include <sys/ioctl.h>
43 #include <sys/resource.h>
44 #include <sys/socket.h>
45 #include <netinet/in.h>
46 #include <net/if.h>
47 #include <arpa/inet.h>
48 #include <dirent.h>
49 #include <netdb.h>
50 #include <sys/select.h>
52 #ifdef CONFIG_BSD
53 #include <sys/stat.h>
54 #if defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || defined(__DragonFly__)
55 #include <sys/sysctl.h>
56 #else
57 #include <util.h>
58 #endif
59 #else
60 #ifdef __linux__
61 #include <malloc.h>
63 #include <linux/ppdev.h>
64 #include <linux/parport.h>
65 #endif
67 #ifdef CONFIG_SECCOMP
68 #include "sysemu/seccomp.h"
69 #endif
71 #ifdef __sun__
72 #include <sys/stat.h>
73 #include <sys/ethernet.h>
74 #include <sys/sockio.h>
75 #include <netinet/arp.h>
76 #include <netinet/in_systm.h>
77 #include <netinet/ip.h>
78 #include <netinet/ip_icmp.h> // must come after ip.h
79 #include <netinet/udp.h>
80 #include <netinet/tcp.h>
81 #include <net/if.h>
82 #include <syslog.h>
83 #include <stropts.h>
84 #endif
85 #endif
86 #endif
88 #if defined(CONFIG_VDE)
89 #include <libvdeplug.h>
90 #endif
92 #ifdef _WIN32
93 #include <windows.h>
94 #endif
96 #ifdef CONFIG_SDL
97 #if defined(__APPLE__) || defined(main)
98 #include <SDL.h>
99 int qemu_main(int argc, char **argv, char **envp);
100 int main(int argc, char **argv)
102 return qemu_main(argc, argv, NULL);
104 #undef main
105 #define main qemu_main
106 #endif
107 #endif /* CONFIG_SDL */
109 #ifdef CONFIG_COCOA
110 #undef main
111 #define main qemu_main
112 #endif /* CONFIG_COCOA */
114 #include <glib.h>
116 #include "hw/hw.h"
117 #include "hw/boards.h"
118 #include "hw/usb.h"
119 #include "hw/pcmcia.h"
120 #include "hw/i386/pc.h"
121 #include "hw/isa/isa.h"
122 #include "hw/bt.h"
123 #include "sysemu/watchdog.h"
124 #include "hw/i386/smbios.h"
125 #include "hw/xen/xen.h"
126 #include "hw/qdev.h"
127 #include "hw/loader.h"
128 #include "monitor/qdev.h"
129 #include "sysemu/bt.h"
130 #include "net/net.h"
131 #include "net/slirp.h"
132 #include "monitor/monitor.h"
133 #include "ui/console.h"
134 #include "sysemu/sysemu.h"
135 #include "exec/gdbstub.h"
136 #include "qemu/timer.h"
137 #include "sysemu/char.h"
138 #include "qemu/cache-utils.h"
139 #include "sysemu/blockdev.h"
140 #include "hw/block/block.h"
141 #include "migration/block.h"
142 #include "sysemu/tpm.h"
143 #include "sysemu/dma.h"
144 #include "audio/audio.h"
145 #include "migration/migration.h"
146 #include "sysemu/kvm.h"
147 #include "qapi/qmp/qjson.h"
148 #include "qemu/option.h"
149 #include "qemu/config-file.h"
150 #include "qemu-options.h"
151 #include "qmp-commands.h"
152 #include "qemu/main-loop.h"
153 #ifdef CONFIG_VIRTFS
154 #include "fsdev/qemu-fsdev.h"
155 #endif
156 #include "sysemu/qtest.h"
158 #include "disas/disas.h"
160 #include "qemu/sockets.h"
162 #include "slirp/libslirp.h"
164 #include "trace.h"
165 #include "trace/control.h"
166 #include "qemu/queue.h"
167 #include "sysemu/cpus.h"
168 #include "sysemu/arch_init.h"
169 #include "qemu/osdep.h"
171 #include "ui/qemu-spice.h"
172 #include "qapi/string-input-visitor.h"
174 //#define DEBUG_NET
175 //#define DEBUG_SLIRP
177 #define DEFAULT_RAM_SIZE 128
179 #define MAX_VIRTIO_CONSOLES 1
180 #define MAX_SCLP_CONSOLES 1
182 static const char *data_dir[16];
183 static int data_dir_idx;
184 const char *bios_name = NULL;
185 enum vga_retrace_method vga_retrace_method = VGA_RETRACE_DUMB;
186 DisplayType display_type = DT_DEFAULT;
187 static int display_remote;
188 const char* keyboard_layout = NULL;
189 ram_addr_t ram_size;
190 const char *mem_path = NULL;
191 #ifdef MAP_POPULATE
192 int mem_prealloc = 0; /* force preallocation of physical target memory */
193 #endif
194 int nb_nics;
195 NICInfo nd_table[MAX_NICS];
196 int autostart;
197 static int rtc_utc = 1;
198 static int rtc_date_offset = -1; /* -1 means no change */
199 QEMUClockType rtc_clock;
200 int vga_interface_type = VGA_NONE;
201 static int full_screen = 0;
202 static int no_frame = 0;
203 int no_quit = 0;
204 CharDriverState *serial_hds[MAX_SERIAL_PORTS];
205 CharDriverState *parallel_hds[MAX_PARALLEL_PORTS];
206 CharDriverState *virtcon_hds[MAX_VIRTIO_CONSOLES];
207 CharDriverState *sclp_hds[MAX_SCLP_CONSOLES];
208 int win2k_install_hack = 0;
209 int singlestep = 0;
210 int smp_cpus = 1;
211 int max_cpus = 0;
212 int smp_cores = 1;
213 int smp_threads = 1;
214 #ifdef CONFIG_VNC
215 const char *vnc_display;
216 #endif
217 int acpi_enabled = 1;
218 int no_hpet = 0;
219 int fd_bootchk = 1;
220 static int no_reboot;
221 int no_shutdown = 0;
222 int cursor_hide = 1;
223 int graphic_rotate = 0;
224 const char *watchdog;
225 QEMUOptionRom option_rom[MAX_OPTION_ROMS];
226 int nb_option_roms;
227 int semihosting_enabled = 0;
228 int old_param = 0;
229 const char *qemu_name;
230 int alt_grab = 0;
231 int ctrl_grab = 0;
232 unsigned int nb_prom_envs = 0;
233 const char *prom_envs[MAX_PROM_ENVS];
234 int boot_menu;
235 bool boot_strict;
236 uint8_t *boot_splash_filedata;
237 size_t boot_splash_filedata_size;
238 uint8_t qemu_extra_params_fw[2];
240 typedef struct FWBootEntry FWBootEntry;
242 struct FWBootEntry {
243 QTAILQ_ENTRY(FWBootEntry) link;
244 int32_t bootindex;
245 DeviceState *dev;
246 char *suffix;
249 static QTAILQ_HEAD(, FWBootEntry) fw_boot_order =
250 QTAILQ_HEAD_INITIALIZER(fw_boot_order);
252 int nb_numa_nodes;
253 uint64_t node_mem[MAX_NODES];
254 unsigned long *node_cpumask[MAX_NODES];
256 uint8_t qemu_uuid[16];
257 bool qemu_uuid_set;
259 static QEMUBootSetHandler *boot_set_handler;
260 static void *boot_set_opaque;
262 static NotifierList exit_notifiers =
263 NOTIFIER_LIST_INITIALIZER(exit_notifiers);
265 static NotifierList machine_init_done_notifiers =
266 NOTIFIER_LIST_INITIALIZER(machine_init_done_notifiers);
268 static bool tcg_allowed = true;
269 bool xen_allowed;
270 uint32_t xen_domid;
271 enum xen_mode xen_mode = XEN_EMULATE;
272 static int tcg_tb_size;
274 static int default_serial = 1;
275 static int default_parallel = 1;
276 static int default_virtcon = 1;
277 static int default_sclp = 1;
278 static int default_monitor = 1;
279 static int default_floppy = 1;
280 static int default_cdrom = 1;
281 static int default_sdcard = 1;
282 static int default_vga = 1;
284 static struct {
285 const char *driver;
286 int *flag;
287 } default_list[] = {
288 { .driver = "isa-serial", .flag = &default_serial },
289 { .driver = "isa-parallel", .flag = &default_parallel },
290 { .driver = "isa-fdc", .flag = &default_floppy },
291 { .driver = "ide-cd", .flag = &default_cdrom },
292 { .driver = "ide-hd", .flag = &default_cdrom },
293 { .driver = "ide-drive", .flag = &default_cdrom },
294 { .driver = "scsi-cd", .flag = &default_cdrom },
295 { .driver = "virtio-serial-pci", .flag = &default_virtcon },
296 { .driver = "virtio-serial-s390", .flag = &default_virtcon },
297 { .driver = "virtio-serial", .flag = &default_virtcon },
298 { .driver = "VGA", .flag = &default_vga },
299 { .driver = "isa-vga", .flag = &default_vga },
300 { .driver = "cirrus-vga", .flag = &default_vga },
301 { .driver = "isa-cirrus-vga", .flag = &default_vga },
302 { .driver = "vmware-svga", .flag = &default_vga },
303 { .driver = "qxl-vga", .flag = &default_vga },
306 static QemuOptsList qemu_rtc_opts = {
307 .name = "rtc",
308 .head = QTAILQ_HEAD_INITIALIZER(qemu_rtc_opts.head),
309 .desc = {
311 .name = "base",
312 .type = QEMU_OPT_STRING,
314 .name = "clock",
315 .type = QEMU_OPT_STRING,
317 .name = "driftfix",
318 .type = QEMU_OPT_STRING,
320 { /* end of list */ }
324 static QemuOptsList qemu_sandbox_opts = {
325 .name = "sandbox",
326 .implied_opt_name = "enable",
327 .head = QTAILQ_HEAD_INITIALIZER(qemu_sandbox_opts.head),
328 .desc = {
330 .name = "enable",
331 .type = QEMU_OPT_BOOL,
333 { /* end of list */ }
337 static QemuOptsList qemu_trace_opts = {
338 .name = "trace",
339 .implied_opt_name = "trace",
340 .head = QTAILQ_HEAD_INITIALIZER(qemu_trace_opts.head),
341 .desc = {
343 .name = "events",
344 .type = QEMU_OPT_STRING,
346 .name = "file",
347 .type = QEMU_OPT_STRING,
349 { /* end of list */ }
353 static QemuOptsList qemu_option_rom_opts = {
354 .name = "option-rom",
355 .implied_opt_name = "romfile",
356 .head = QTAILQ_HEAD_INITIALIZER(qemu_option_rom_opts.head),
357 .desc = {
359 .name = "bootindex",
360 .type = QEMU_OPT_NUMBER,
361 }, {
362 .name = "romfile",
363 .type = QEMU_OPT_STRING,
365 { /* end of list */ }
369 static QemuOptsList qemu_machine_opts = {
370 .name = "machine",
371 .implied_opt_name = "type",
372 .merge_lists = true,
373 .head = QTAILQ_HEAD_INITIALIZER(qemu_machine_opts.head),
374 .desc = {
376 .name = "type",
377 .type = QEMU_OPT_STRING,
378 .help = "emulated machine"
379 }, {
380 .name = "accel",
381 .type = QEMU_OPT_STRING,
382 .help = "accelerator list",
383 }, {
384 .name = "kernel_irqchip",
385 .type = QEMU_OPT_BOOL,
386 .help = "use KVM in-kernel irqchip",
387 }, {
388 .name = "kvm_shadow_mem",
389 .type = QEMU_OPT_SIZE,
390 .help = "KVM shadow MMU size",
391 }, {
392 .name = "kernel",
393 .type = QEMU_OPT_STRING,
394 .help = "Linux kernel image file",
395 }, {
396 .name = "initrd",
397 .type = QEMU_OPT_STRING,
398 .help = "Linux initial ramdisk file",
399 }, {
400 .name = "append",
401 .type = QEMU_OPT_STRING,
402 .help = "Linux kernel command line",
403 }, {
404 .name = "dtb",
405 .type = QEMU_OPT_STRING,
406 .help = "Linux kernel device tree file",
407 }, {
408 .name = "dumpdtb",
409 .type = QEMU_OPT_STRING,
410 .help = "Dump current dtb to a file and quit",
411 }, {
412 .name = "phandle_start",
413 .type = QEMU_OPT_NUMBER,
414 .help = "The first phandle ID we may generate dynamically",
415 }, {
416 .name = "dt_compatible",
417 .type = QEMU_OPT_STRING,
418 .help = "Overrides the \"compatible\" property of the dt root node",
419 }, {
420 .name = "dump-guest-core",
421 .type = QEMU_OPT_BOOL,
422 .help = "Include guest memory in a core dump",
423 }, {
424 .name = "mem-merge",
425 .type = QEMU_OPT_BOOL,
426 .help = "enable/disable memory merge support",
428 .name = "usb",
429 .type = QEMU_OPT_BOOL,
430 .help = "Set on/off to enable/disable usb",
432 { /* End of list */ }
436 static QemuOptsList qemu_boot_opts = {
437 .name = "boot-opts",
438 .implied_opt_name = "order",
439 .merge_lists = true,
440 .head = QTAILQ_HEAD_INITIALIZER(qemu_boot_opts.head),
441 .desc = {
443 .name = "order",
444 .type = QEMU_OPT_STRING,
445 }, {
446 .name = "once",
447 .type = QEMU_OPT_STRING,
448 }, {
449 .name = "menu",
450 .type = QEMU_OPT_BOOL,
451 }, {
452 .name = "splash",
453 .type = QEMU_OPT_STRING,
454 }, {
455 .name = "splash-time",
456 .type = QEMU_OPT_STRING,
457 }, {
458 .name = "reboot-timeout",
459 .type = QEMU_OPT_STRING,
460 }, {
461 .name = "strict",
462 .type = QEMU_OPT_STRING,
464 { /*End of list */ }
468 static QemuOptsList qemu_add_fd_opts = {
469 .name = "add-fd",
470 .head = QTAILQ_HEAD_INITIALIZER(qemu_add_fd_opts.head),
471 .desc = {
473 .name = "fd",
474 .type = QEMU_OPT_NUMBER,
475 .help = "file descriptor of which a duplicate is added to fd set",
477 .name = "set",
478 .type = QEMU_OPT_NUMBER,
479 .help = "ID of the fd set to add fd to",
481 .name = "opaque",
482 .type = QEMU_OPT_STRING,
483 .help = "free-form string used to describe fd",
485 { /* end of list */ }
489 static QemuOptsList qemu_object_opts = {
490 .name = "object",
491 .implied_opt_name = "qom-type",
492 .head = QTAILQ_HEAD_INITIALIZER(qemu_object_opts.head),
493 .desc = {
498 static QemuOptsList qemu_tpmdev_opts = {
499 .name = "tpmdev",
500 .implied_opt_name = "type",
501 .head = QTAILQ_HEAD_INITIALIZER(qemu_tpmdev_opts.head),
502 .desc = {
503 /* options are defined in the TPM backends */
504 { /* end of list */ }
508 static QemuOptsList qemu_realtime_opts = {
509 .name = "realtime",
510 .head = QTAILQ_HEAD_INITIALIZER(qemu_realtime_opts.head),
511 .desc = {
513 .name = "mlock",
514 .type = QEMU_OPT_BOOL,
516 { /* end of list */ }
520 static QemuOptsList qemu_msg_opts = {
521 .name = "msg",
522 .head = QTAILQ_HEAD_INITIALIZER(qemu_msg_opts.head),
523 .desc = {
525 .name = "timestamp",
526 .type = QEMU_OPT_BOOL,
528 { /* end of list */ }
533 * Get machine options
535 * Returns: machine options (never null).
537 QemuOpts *qemu_get_machine_opts(void)
539 QemuOptsList *list;
540 QemuOpts *opts;
542 list = qemu_find_opts("machine");
543 assert(list);
544 opts = qemu_opts_find(list, NULL);
545 if (!opts) {
546 opts = qemu_opts_create_nofail(list);
548 return opts;
551 const char *qemu_get_vm_name(void)
553 return qemu_name;
556 static void res_free(void)
558 if (boot_splash_filedata != NULL) {
559 g_free(boot_splash_filedata);
560 boot_splash_filedata = NULL;
564 static int default_driver_check(QemuOpts *opts, void *opaque)
566 const char *driver = qemu_opt_get(opts, "driver");
567 int i;
569 if (!driver)
570 return 0;
571 for (i = 0; i < ARRAY_SIZE(default_list); i++) {
572 if (strcmp(default_list[i].driver, driver) != 0)
573 continue;
574 *(default_list[i].flag) = 0;
576 return 0;
579 /***********************************************************/
580 /* QEMU state */
582 static RunState current_run_state = RUN_STATE_PRELAUNCH;
584 typedef struct {
585 RunState from;
586 RunState to;
587 } RunStateTransition;
589 static const RunStateTransition runstate_transitions_def[] = {
590 /* from -> to */
591 { RUN_STATE_DEBUG, RUN_STATE_RUNNING },
593 { RUN_STATE_INMIGRATE, RUN_STATE_RUNNING },
594 { RUN_STATE_INMIGRATE, RUN_STATE_PAUSED },
596 { RUN_STATE_INTERNAL_ERROR, RUN_STATE_PAUSED },
597 { RUN_STATE_INTERNAL_ERROR, RUN_STATE_FINISH_MIGRATE },
599 { RUN_STATE_IO_ERROR, RUN_STATE_RUNNING },
600 { RUN_STATE_IO_ERROR, RUN_STATE_FINISH_MIGRATE },
602 { RUN_STATE_PAUSED, RUN_STATE_RUNNING },
603 { RUN_STATE_PAUSED, RUN_STATE_FINISH_MIGRATE },
605 { RUN_STATE_POSTMIGRATE, RUN_STATE_RUNNING },
606 { RUN_STATE_POSTMIGRATE, RUN_STATE_FINISH_MIGRATE },
608 { RUN_STATE_PRELAUNCH, RUN_STATE_RUNNING },
609 { RUN_STATE_PRELAUNCH, RUN_STATE_FINISH_MIGRATE },
610 { RUN_STATE_PRELAUNCH, RUN_STATE_INMIGRATE },
612 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_RUNNING },
613 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_POSTMIGRATE },
615 { RUN_STATE_RESTORE_VM, RUN_STATE_RUNNING },
617 { RUN_STATE_RUNNING, RUN_STATE_DEBUG },
618 { RUN_STATE_RUNNING, RUN_STATE_INTERNAL_ERROR },
619 { RUN_STATE_RUNNING, RUN_STATE_IO_ERROR },
620 { RUN_STATE_RUNNING, RUN_STATE_PAUSED },
621 { RUN_STATE_RUNNING, RUN_STATE_FINISH_MIGRATE },
622 { RUN_STATE_RUNNING, RUN_STATE_RESTORE_VM },
623 { RUN_STATE_RUNNING, RUN_STATE_SAVE_VM },
624 { RUN_STATE_RUNNING, RUN_STATE_SHUTDOWN },
625 { RUN_STATE_RUNNING, RUN_STATE_WATCHDOG },
626 { RUN_STATE_RUNNING, RUN_STATE_GUEST_PANICKED },
628 { RUN_STATE_SAVE_VM, RUN_STATE_RUNNING },
630 { RUN_STATE_SHUTDOWN, RUN_STATE_PAUSED },
631 { RUN_STATE_SHUTDOWN, RUN_STATE_FINISH_MIGRATE },
633 { RUN_STATE_DEBUG, RUN_STATE_SUSPENDED },
634 { RUN_STATE_RUNNING, RUN_STATE_SUSPENDED },
635 { RUN_STATE_SUSPENDED, RUN_STATE_RUNNING },
636 { RUN_STATE_SUSPENDED, RUN_STATE_FINISH_MIGRATE },
638 { RUN_STATE_WATCHDOG, RUN_STATE_RUNNING },
639 { RUN_STATE_WATCHDOG, RUN_STATE_FINISH_MIGRATE },
641 { RUN_STATE_GUEST_PANICKED, RUN_STATE_RUNNING },
642 { RUN_STATE_GUEST_PANICKED, RUN_STATE_FINISH_MIGRATE },
644 { RUN_STATE_MAX, RUN_STATE_MAX },
647 static bool runstate_valid_transitions[RUN_STATE_MAX][RUN_STATE_MAX];
649 bool runstate_check(RunState state)
651 return current_run_state == state;
654 static void runstate_init(void)
656 const RunStateTransition *p;
658 memset(&runstate_valid_transitions, 0, sizeof(runstate_valid_transitions));
660 for (p = &runstate_transitions_def[0]; p->from != RUN_STATE_MAX; p++) {
661 runstate_valid_transitions[p->from][p->to] = true;
665 /* This function will abort() on invalid state transitions */
666 void runstate_set(RunState new_state)
668 assert(new_state < RUN_STATE_MAX);
670 if (!runstate_valid_transitions[current_run_state][new_state]) {
671 fprintf(stderr, "ERROR: invalid runstate transition: '%s' -> '%s'\n",
672 RunState_lookup[current_run_state],
673 RunState_lookup[new_state]);
674 abort();
676 trace_runstate_set(new_state);
677 current_run_state = new_state;
680 int runstate_is_running(void)
682 return runstate_check(RUN_STATE_RUNNING);
685 bool runstate_needs_reset(void)
687 return runstate_check(RUN_STATE_INTERNAL_ERROR) ||
688 runstate_check(RUN_STATE_SHUTDOWN);
691 StatusInfo *qmp_query_status(Error **errp)
693 StatusInfo *info = g_malloc0(sizeof(*info));
695 info->running = runstate_is_running();
696 info->singlestep = singlestep;
697 info->status = current_run_state;
699 return info;
702 /***********************************************************/
703 /* real time host monotonic timer */
705 /***********************************************************/
706 /* host time/date access */
707 void qemu_get_timedate(struct tm *tm, int offset)
709 time_t ti;
711 time(&ti);
712 ti += offset;
713 if (rtc_date_offset == -1) {
714 if (rtc_utc)
715 gmtime_r(&ti, tm);
716 else
717 localtime_r(&ti, tm);
718 } else {
719 ti -= rtc_date_offset;
720 gmtime_r(&ti, tm);
724 int qemu_timedate_diff(struct tm *tm)
726 time_t seconds;
728 if (rtc_date_offset == -1)
729 if (rtc_utc)
730 seconds = mktimegm(tm);
731 else {
732 struct tm tmp = *tm;
733 tmp.tm_isdst = -1; /* use timezone to figure it out */
734 seconds = mktime(&tmp);
736 else
737 seconds = mktimegm(tm) + rtc_date_offset;
739 return seconds - time(NULL);
742 void rtc_change_mon_event(struct tm *tm)
744 QObject *data;
746 data = qobject_from_jsonf("{ 'offset': %d }", qemu_timedate_diff(tm));
747 monitor_protocol_event(QEVENT_RTC_CHANGE, data);
748 qobject_decref(data);
751 static void configure_rtc_date_offset(const char *startdate, int legacy)
753 time_t rtc_start_date;
754 struct tm tm;
756 if (!strcmp(startdate, "now") && legacy) {
757 rtc_date_offset = -1;
758 } else {
759 if (sscanf(startdate, "%d-%d-%dT%d:%d:%d",
760 &tm.tm_year,
761 &tm.tm_mon,
762 &tm.tm_mday,
763 &tm.tm_hour,
764 &tm.tm_min,
765 &tm.tm_sec) == 6) {
766 /* OK */
767 } else if (sscanf(startdate, "%d-%d-%d",
768 &tm.tm_year,
769 &tm.tm_mon,
770 &tm.tm_mday) == 3) {
771 tm.tm_hour = 0;
772 tm.tm_min = 0;
773 tm.tm_sec = 0;
774 } else {
775 goto date_fail;
777 tm.tm_year -= 1900;
778 tm.tm_mon--;
779 rtc_start_date = mktimegm(&tm);
780 if (rtc_start_date == -1) {
781 date_fail:
782 fprintf(stderr, "Invalid date format. Valid formats are:\n"
783 "'2006-06-17T16:01:21' or '2006-06-17'\n");
784 exit(1);
786 rtc_date_offset = time(NULL) - rtc_start_date;
790 static void configure_rtc(QemuOpts *opts)
792 const char *value;
794 value = qemu_opt_get(opts, "base");
795 if (value) {
796 if (!strcmp(value, "utc")) {
797 rtc_utc = 1;
798 } else if (!strcmp(value, "localtime")) {
799 rtc_utc = 0;
800 } else {
801 configure_rtc_date_offset(value, 0);
804 value = qemu_opt_get(opts, "clock");
805 if (value) {
806 if (!strcmp(value, "host")) {
807 rtc_clock = QEMU_CLOCK_HOST;
808 } else if (!strcmp(value, "rt")) {
809 rtc_clock = QEMU_CLOCK_REALTIME;
810 } else if (!strcmp(value, "vm")) {
811 rtc_clock = QEMU_CLOCK_VIRTUAL;
812 } else {
813 fprintf(stderr, "qemu: invalid option value '%s'\n", value);
814 exit(1);
817 value = qemu_opt_get(opts, "driftfix");
818 if (value) {
819 if (!strcmp(value, "slew")) {
820 static GlobalProperty slew_lost_ticks[] = {
822 .driver = "mc146818rtc",
823 .property = "lost_tick_policy",
824 .value = "slew",
826 { /* end of list */ }
829 qdev_prop_register_global_list(slew_lost_ticks);
830 } else if (!strcmp(value, "none")) {
831 /* discard is default */
832 } else {
833 fprintf(stderr, "qemu: invalid option value '%s'\n", value);
834 exit(1);
839 /***********************************************************/
840 /* Bluetooth support */
841 static int nb_hcis;
842 static int cur_hci;
843 static struct HCIInfo *hci_table[MAX_NICS];
845 struct HCIInfo *qemu_next_hci(void)
847 if (cur_hci == nb_hcis)
848 return &null_hci;
850 return hci_table[cur_hci++];
853 static int bt_hci_parse(const char *str)
855 struct HCIInfo *hci;
856 bdaddr_t bdaddr;
858 if (nb_hcis >= MAX_NICS) {
859 fprintf(stderr, "qemu: Too many bluetooth HCIs (max %i).\n", MAX_NICS);
860 return -1;
863 hci = hci_init(str);
864 if (!hci)
865 return -1;
867 bdaddr.b[0] = 0x52;
868 bdaddr.b[1] = 0x54;
869 bdaddr.b[2] = 0x00;
870 bdaddr.b[3] = 0x12;
871 bdaddr.b[4] = 0x34;
872 bdaddr.b[5] = 0x56 + nb_hcis;
873 hci->bdaddr_set(hci, bdaddr.b);
875 hci_table[nb_hcis++] = hci;
877 return 0;
880 static void bt_vhci_add(int vlan_id)
882 struct bt_scatternet_s *vlan = qemu_find_bt_vlan(vlan_id);
884 if (!vlan->slave)
885 fprintf(stderr, "qemu: warning: adding a VHCI to "
886 "an empty scatternet %i\n", vlan_id);
888 bt_vhci_init(bt_new_hci(vlan));
891 static struct bt_device_s *bt_device_add(const char *opt)
893 struct bt_scatternet_s *vlan;
894 int vlan_id = 0;
895 char *endp = strstr(opt, ",vlan=");
896 int len = (endp ? endp - opt : strlen(opt)) + 1;
897 char devname[10];
899 pstrcpy(devname, MIN(sizeof(devname), len), opt);
901 if (endp) {
902 vlan_id = strtol(endp + 6, &endp, 0);
903 if (*endp) {
904 fprintf(stderr, "qemu: unrecognised bluetooth vlan Id\n");
905 return 0;
909 vlan = qemu_find_bt_vlan(vlan_id);
911 if (!vlan->slave)
912 fprintf(stderr, "qemu: warning: adding a slave device to "
913 "an empty scatternet %i\n", vlan_id);
915 if (!strcmp(devname, "keyboard"))
916 return bt_keyboard_init(vlan);
918 fprintf(stderr, "qemu: unsupported bluetooth device `%s'\n", devname);
919 return 0;
922 static int bt_parse(const char *opt)
924 const char *endp, *p;
925 int vlan;
927 if (strstart(opt, "hci", &endp)) {
928 if (!*endp || *endp == ',') {
929 if (*endp)
930 if (!strstart(endp, ",vlan=", 0))
931 opt = endp + 1;
933 return bt_hci_parse(opt);
935 } else if (strstart(opt, "vhci", &endp)) {
936 if (!*endp || *endp == ',') {
937 if (*endp) {
938 if (strstart(endp, ",vlan=", &p)) {
939 vlan = strtol(p, (char **) &endp, 0);
940 if (*endp) {
941 fprintf(stderr, "qemu: bad scatternet '%s'\n", p);
942 return 1;
944 } else {
945 fprintf(stderr, "qemu: bad parameter '%s'\n", endp + 1);
946 return 1;
948 } else
949 vlan = 0;
951 bt_vhci_add(vlan);
952 return 0;
954 } else if (strstart(opt, "device:", &endp))
955 return !bt_device_add(endp);
957 fprintf(stderr, "qemu: bad bluetooth parameter '%s'\n", opt);
958 return 1;
961 static int parse_sandbox(QemuOpts *opts, void *opaque)
963 /* FIXME: change this to true for 1.3 */
964 if (qemu_opt_get_bool(opts, "enable", false)) {
965 #ifdef CONFIG_SECCOMP
966 if (seccomp_start() < 0) {
967 qerror_report(ERROR_CLASS_GENERIC_ERROR,
968 "failed to install seccomp syscall filter in the kernel");
969 return -1;
971 #else
972 qerror_report(ERROR_CLASS_GENERIC_ERROR,
973 "sandboxing request but seccomp is not compiled into this build");
974 return -1;
975 #endif
978 return 0;
981 bool usb_enabled(bool default_usb)
983 return qemu_opt_get_bool(qemu_get_machine_opts(), "usb", default_usb);
986 #ifndef _WIN32
987 static int parse_add_fd(QemuOpts *opts, void *opaque)
989 int fd, dupfd, flags;
990 int64_t fdset_id;
991 const char *fd_opaque = NULL;
993 fd = qemu_opt_get_number(opts, "fd", -1);
994 fdset_id = qemu_opt_get_number(opts, "set", -1);
995 fd_opaque = qemu_opt_get(opts, "opaque");
997 if (fd < 0) {
998 qerror_report(ERROR_CLASS_GENERIC_ERROR,
999 "fd option is required and must be non-negative");
1000 return -1;
1003 if (fd <= STDERR_FILENO) {
1004 qerror_report(ERROR_CLASS_GENERIC_ERROR,
1005 "fd cannot be a standard I/O stream");
1006 return -1;
1010 * All fds inherited across exec() necessarily have FD_CLOEXEC
1011 * clear, while qemu sets FD_CLOEXEC on all other fds used internally.
1013 flags = fcntl(fd, F_GETFD);
1014 if (flags == -1 || (flags & FD_CLOEXEC)) {
1015 qerror_report(ERROR_CLASS_GENERIC_ERROR,
1016 "fd is not valid or already in use");
1017 return -1;
1020 if (fdset_id < 0) {
1021 qerror_report(ERROR_CLASS_GENERIC_ERROR,
1022 "set option is required and must be non-negative");
1023 return -1;
1026 #ifdef F_DUPFD_CLOEXEC
1027 dupfd = fcntl(fd, F_DUPFD_CLOEXEC, 0);
1028 #else
1029 dupfd = dup(fd);
1030 if (dupfd != -1) {
1031 qemu_set_cloexec(dupfd);
1033 #endif
1034 if (dupfd == -1) {
1035 qerror_report(ERROR_CLASS_GENERIC_ERROR,
1036 "Error duplicating fd: %s", strerror(errno));
1037 return -1;
1040 /* add the duplicate fd, and optionally the opaque string, to the fd set */
1041 monitor_fdset_add_fd(dupfd, true, fdset_id, fd_opaque ? true : false,
1042 fd_opaque, NULL);
1044 return 0;
1047 static int cleanup_add_fd(QemuOpts *opts, void *opaque)
1049 int fd;
1051 fd = qemu_opt_get_number(opts, "fd", -1);
1052 close(fd);
1054 return 0;
1056 #endif
1058 /***********************************************************/
1059 /* QEMU Block devices */
1061 #define HD_OPTS "media=disk"
1062 #define CDROM_OPTS "media=cdrom"
1063 #define FD_OPTS ""
1064 #define PFLASH_OPTS ""
1065 #define MTD_OPTS ""
1066 #define SD_OPTS ""
1068 static int drive_init_func(QemuOpts *opts, void *opaque)
1070 BlockInterfaceType *block_default_type = opaque;
1072 return drive_init(opts, *block_default_type) == NULL;
1075 static int drive_enable_snapshot(QemuOpts *opts, void *opaque)
1077 if (NULL == qemu_opt_get(opts, "snapshot")) {
1078 qemu_opt_set(opts, "snapshot", "on");
1080 return 0;
1083 static void default_drive(int enable, int snapshot, BlockInterfaceType type,
1084 int index, const char *optstr)
1086 QemuOpts *opts;
1088 if (!enable || drive_get_by_index(type, index)) {
1089 return;
1092 opts = drive_add(type, index, NULL, optstr);
1093 if (snapshot) {
1094 drive_enable_snapshot(opts, NULL);
1096 if (!drive_init(opts, type)) {
1097 exit(1);
1101 void qemu_register_boot_set(QEMUBootSetHandler *func, void *opaque)
1103 boot_set_handler = func;
1104 boot_set_opaque = opaque;
1107 int qemu_boot_set(const char *boot_order)
1109 if (!boot_set_handler) {
1110 return -EINVAL;
1112 return boot_set_handler(boot_set_opaque, boot_order);
1115 static void validate_bootdevices(const char *devices)
1117 /* We just do some generic consistency checks */
1118 const char *p;
1119 int bitmap = 0;
1121 for (p = devices; *p != '\0'; p++) {
1122 /* Allowed boot devices are:
1123 * a-b: floppy disk drives
1124 * c-f: IDE disk drives
1125 * g-m: machine implementation dependent drives
1126 * n-p: network devices
1127 * It's up to each machine implementation to check if the given boot
1128 * devices match the actual hardware implementation and firmware
1129 * features.
1131 if (*p < 'a' || *p > 'p') {
1132 fprintf(stderr, "Invalid boot device '%c'\n", *p);
1133 exit(1);
1135 if (bitmap & (1 << (*p - 'a'))) {
1136 fprintf(stderr, "Boot device '%c' was given twice\n", *p);
1137 exit(1);
1139 bitmap |= 1 << (*p - 'a');
1143 static void restore_boot_order(void *opaque)
1145 char *normal_boot_order = opaque;
1146 static int first = 1;
1148 /* Restore boot order and remove ourselves after the first boot */
1149 if (first) {
1150 first = 0;
1151 return;
1154 qemu_boot_set(normal_boot_order);
1156 qemu_unregister_reset(restore_boot_order, normal_boot_order);
1157 g_free(normal_boot_order);
1160 void add_boot_device_path(int32_t bootindex, DeviceState *dev,
1161 const char *suffix)
1163 FWBootEntry *node, *i;
1165 if (bootindex < 0) {
1166 return;
1169 assert(dev != NULL || suffix != NULL);
1171 node = g_malloc0(sizeof(FWBootEntry));
1172 node->bootindex = bootindex;
1173 node->suffix = g_strdup(suffix);
1174 node->dev = dev;
1176 QTAILQ_FOREACH(i, &fw_boot_order, link) {
1177 if (i->bootindex == bootindex) {
1178 fprintf(stderr, "Two devices with same boot index %d\n", bootindex);
1179 exit(1);
1180 } else if (i->bootindex < bootindex) {
1181 continue;
1183 QTAILQ_INSERT_BEFORE(i, node, link);
1184 return;
1186 QTAILQ_INSERT_TAIL(&fw_boot_order, node, link);
1189 DeviceState *get_boot_device(uint32_t position)
1191 uint32_t counter = 0;
1192 FWBootEntry *i = NULL;
1193 DeviceState *res = NULL;
1195 if (!QTAILQ_EMPTY(&fw_boot_order)) {
1196 QTAILQ_FOREACH(i, &fw_boot_order, link) {
1197 if (counter == position) {
1198 res = i->dev;
1199 break;
1201 counter++;
1204 return res;
1208 * This function returns null terminated string that consist of new line
1209 * separated device paths.
1211 * memory pointed by "size" is assigned total length of the array in bytes
1214 char *get_boot_devices_list(size_t *size)
1216 FWBootEntry *i;
1217 size_t total = 0;
1218 char *list = NULL;
1220 QTAILQ_FOREACH(i, &fw_boot_order, link) {
1221 char *devpath = NULL, *bootpath;
1222 size_t len;
1224 if (i->dev) {
1225 devpath = qdev_get_fw_dev_path(i->dev);
1226 assert(devpath);
1229 if (i->suffix && devpath) {
1230 size_t bootpathlen = strlen(devpath) + strlen(i->suffix) + 1;
1232 bootpath = g_malloc(bootpathlen);
1233 snprintf(bootpath, bootpathlen, "%s%s", devpath, i->suffix);
1234 g_free(devpath);
1235 } else if (devpath) {
1236 bootpath = devpath;
1237 } else {
1238 assert(i->suffix);
1239 bootpath = g_strdup(i->suffix);
1242 if (total) {
1243 list[total-1] = '\n';
1245 len = strlen(bootpath) + 1;
1246 list = g_realloc(list, total + len);
1247 memcpy(&list[total], bootpath, len);
1248 total += len;
1249 g_free(bootpath);
1252 *size = total;
1254 if (boot_strict && *size > 0) {
1255 list[total-1] = '\n';
1256 list = g_realloc(list, total + 5);
1257 memcpy(&list[total], "HALT", 5);
1258 *size = total + 5;
1260 return list;
1263 static void numa_node_parse_cpus(int nodenr, const char *cpus)
1265 char *endptr;
1266 unsigned long long value, endvalue;
1268 /* Empty CPU range strings will be considered valid, they will simply
1269 * not set any bit in the CPU bitmap.
1271 if (!*cpus) {
1272 return;
1275 if (parse_uint(cpus, &value, &endptr, 10) < 0) {
1276 goto error;
1278 if (*endptr == '-') {
1279 if (parse_uint_full(endptr + 1, &endvalue, 10) < 0) {
1280 goto error;
1282 } else if (*endptr == '\0') {
1283 endvalue = value;
1284 } else {
1285 goto error;
1288 if (endvalue >= MAX_CPUMASK_BITS) {
1289 endvalue = MAX_CPUMASK_BITS - 1;
1290 fprintf(stderr,
1291 "qemu: NUMA: A max of %d VCPUs are supported\n",
1292 MAX_CPUMASK_BITS);
1295 if (endvalue < value) {
1296 goto error;
1299 bitmap_set(node_cpumask[nodenr], value, endvalue-value+1);
1300 return;
1302 error:
1303 fprintf(stderr, "qemu: Invalid NUMA CPU range: %s\n", cpus);
1304 exit(1);
1307 static void numa_add(const char *optarg)
1309 char option[128];
1310 char *endptr;
1311 unsigned long long nodenr;
1313 optarg = get_opt_name(option, 128, optarg, ',');
1314 if (*optarg == ',') {
1315 optarg++;
1317 if (!strcmp(option, "node")) {
1319 if (nb_numa_nodes >= MAX_NODES) {
1320 fprintf(stderr, "qemu: too many NUMA nodes\n");
1321 exit(1);
1324 if (get_param_value(option, 128, "nodeid", optarg) == 0) {
1325 nodenr = nb_numa_nodes;
1326 } else {
1327 if (parse_uint_full(option, &nodenr, 10) < 0) {
1328 fprintf(stderr, "qemu: Invalid NUMA nodeid: %s\n", option);
1329 exit(1);
1333 if (nodenr >= MAX_NODES) {
1334 fprintf(stderr, "qemu: invalid NUMA nodeid: %llu\n", nodenr);
1335 exit(1);
1338 if (get_param_value(option, 128, "mem", optarg) == 0) {
1339 node_mem[nodenr] = 0;
1340 } else {
1341 int64_t sval;
1342 sval = strtosz(option, &endptr);
1343 if (sval < 0 || *endptr) {
1344 fprintf(stderr, "qemu: invalid numa mem size: %s\n", optarg);
1345 exit(1);
1347 node_mem[nodenr] = sval;
1349 if (get_param_value(option, 128, "cpus", optarg) != 0) {
1350 numa_node_parse_cpus(nodenr, option);
1352 nb_numa_nodes++;
1353 } else {
1354 fprintf(stderr, "Invalid -numa option: %s\n", option);
1355 exit(1);
1359 static QemuOptsList qemu_smp_opts = {
1360 .name = "smp-opts",
1361 .implied_opt_name = "cpus",
1362 .merge_lists = true,
1363 .head = QTAILQ_HEAD_INITIALIZER(qemu_smp_opts.head),
1364 .desc = {
1366 .name = "cpus",
1367 .type = QEMU_OPT_NUMBER,
1368 }, {
1369 .name = "sockets",
1370 .type = QEMU_OPT_NUMBER,
1371 }, {
1372 .name = "cores",
1373 .type = QEMU_OPT_NUMBER,
1374 }, {
1375 .name = "threads",
1376 .type = QEMU_OPT_NUMBER,
1377 }, {
1378 .name = "maxcpus",
1379 .type = QEMU_OPT_NUMBER,
1381 { /*End of list */ }
1385 static void smp_parse(QemuOpts *opts)
1387 if (opts) {
1389 unsigned cpus = qemu_opt_get_number(opts, "cpus", 0);
1390 unsigned sockets = qemu_opt_get_number(opts, "sockets", 0);
1391 unsigned cores = qemu_opt_get_number(opts, "cores", 0);
1392 unsigned threads = qemu_opt_get_number(opts, "threads", 0);
1394 /* compute missing values, prefer sockets over cores over threads */
1395 if (cpus == 0 || sockets == 0) {
1396 sockets = sockets > 0 ? sockets : 1;
1397 cores = cores > 0 ? cores : 1;
1398 threads = threads > 0 ? threads : 1;
1399 if (cpus == 0) {
1400 cpus = cores * threads * sockets;
1402 } else {
1403 if (cores == 0) {
1404 threads = threads > 0 ? threads : 1;
1405 cores = cpus / (sockets * threads);
1406 } else {
1407 threads = cpus / (cores * sockets);
1411 max_cpus = qemu_opt_get_number(opts, "maxcpus", 0);
1413 smp_cpus = cpus;
1414 smp_cores = cores > 0 ? cores : 1;
1415 smp_threads = threads > 0 ? threads : 1;
1419 if (max_cpus == 0) {
1420 max_cpus = smp_cpus;
1423 if (max_cpus > 255) {
1424 fprintf(stderr, "Unsupported number of maxcpus\n");
1425 exit(1);
1427 if (max_cpus < smp_cpus) {
1428 fprintf(stderr, "maxcpus must be equal to or greater than smp\n");
1429 exit(1);
1434 static void configure_realtime(QemuOpts *opts)
1436 bool enable_mlock;
1438 enable_mlock = qemu_opt_get_bool(opts, "mlock", true);
1440 if (enable_mlock) {
1441 if (os_mlock() < 0) {
1442 fprintf(stderr, "qemu: locking memory failed\n");
1443 exit(1);
1449 static void configure_msg(QemuOpts *opts)
1451 enable_timestamp_msg = qemu_opt_get_bool(opts, "timestamp", true);
1454 /***********************************************************/
1455 /* USB devices */
1457 static int usb_device_add(const char *devname)
1459 USBDevice *dev = NULL;
1460 #ifndef CONFIG_LINUX
1461 const char *p;
1462 #endif
1464 if (!usb_enabled(false)) {
1465 return -1;
1468 /* drivers with .usbdevice_name entry in USBDeviceInfo */
1469 dev = usbdevice_create(devname);
1470 if (dev)
1471 goto done;
1473 /* the other ones */
1474 #ifndef CONFIG_LINUX
1475 /* only the linux version is qdev-ified, usb-bsd still needs this */
1476 if (strstart(devname, "host:", &p)) {
1477 dev = usb_host_device_open(usb_bus_find(-1), p);
1479 #endif
1480 if (!dev)
1481 return -1;
1483 done:
1484 return 0;
1487 static int usb_device_del(const char *devname)
1489 int bus_num, addr;
1490 const char *p;
1492 if (strstart(devname, "host:", &p)) {
1493 return -1;
1496 if (!usb_enabled(false)) {
1497 return -1;
1500 p = strchr(devname, '.');
1501 if (!p)
1502 return -1;
1503 bus_num = strtoul(devname, NULL, 0);
1504 addr = strtoul(p + 1, NULL, 0);
1506 return usb_device_delete_addr(bus_num, addr);
1509 static int usb_parse(const char *cmdline)
1511 int r;
1512 r = usb_device_add(cmdline);
1513 if (r < 0) {
1514 fprintf(stderr, "qemu: could not add USB device '%s'\n", cmdline);
1516 return r;
1519 void do_usb_add(Monitor *mon, const QDict *qdict)
1521 const char *devname = qdict_get_str(qdict, "devname");
1522 if (usb_device_add(devname) < 0) {
1523 error_report("could not add USB device '%s'", devname);
1527 void do_usb_del(Monitor *mon, const QDict *qdict)
1529 const char *devname = qdict_get_str(qdict, "devname");
1530 if (usb_device_del(devname) < 0) {
1531 error_report("could not delete USB device '%s'", devname);
1535 /***********************************************************/
1536 /* PCMCIA/Cardbus */
1538 static struct pcmcia_socket_entry_s {
1539 PCMCIASocket *socket;
1540 struct pcmcia_socket_entry_s *next;
1541 } *pcmcia_sockets = 0;
1543 void pcmcia_socket_register(PCMCIASocket *socket)
1545 struct pcmcia_socket_entry_s *entry;
1547 entry = g_malloc(sizeof(struct pcmcia_socket_entry_s));
1548 entry->socket = socket;
1549 entry->next = pcmcia_sockets;
1550 pcmcia_sockets = entry;
1553 void pcmcia_socket_unregister(PCMCIASocket *socket)
1555 struct pcmcia_socket_entry_s *entry, **ptr;
1557 ptr = &pcmcia_sockets;
1558 for (entry = *ptr; entry; ptr = &entry->next, entry = *ptr)
1559 if (entry->socket == socket) {
1560 *ptr = entry->next;
1561 g_free(entry);
1565 void pcmcia_info(Monitor *mon, const QDict *qdict)
1567 struct pcmcia_socket_entry_s *iter;
1569 if (!pcmcia_sockets)
1570 monitor_printf(mon, "No PCMCIA sockets\n");
1572 for (iter = pcmcia_sockets; iter; iter = iter->next)
1573 monitor_printf(mon, "%s: %s\n", iter->socket->slot_string,
1574 iter->socket->attached ? iter->socket->card_string :
1575 "Empty");
1578 /***********************************************************/
1579 /* machine registration */
1581 static QEMUMachine *first_machine = NULL;
1582 QEMUMachine *current_machine = NULL;
1584 int qemu_register_machine(QEMUMachine *m)
1586 QEMUMachine **pm;
1587 pm = &first_machine;
1588 while (*pm != NULL)
1589 pm = &(*pm)->next;
1590 m->next = NULL;
1591 *pm = m;
1592 return 0;
1595 static QEMUMachine *find_machine(const char *name)
1597 QEMUMachine *m;
1599 for(m = first_machine; m != NULL; m = m->next) {
1600 if (!strcmp(m->name, name))
1601 return m;
1602 if (m->alias && !strcmp(m->alias, name))
1603 return m;
1605 return NULL;
1608 QEMUMachine *find_default_machine(void)
1610 QEMUMachine *m;
1612 for(m = first_machine; m != NULL; m = m->next) {
1613 if (m->is_default) {
1614 return m;
1617 return NULL;
1620 MachineInfoList *qmp_query_machines(Error **errp)
1622 MachineInfoList *mach_list = NULL;
1623 QEMUMachine *m;
1625 for (m = first_machine; m; m = m->next) {
1626 MachineInfoList *entry;
1627 MachineInfo *info;
1629 info = g_malloc0(sizeof(*info));
1630 if (m->is_default) {
1631 info->has_is_default = true;
1632 info->is_default = true;
1635 if (m->alias) {
1636 info->has_alias = true;
1637 info->alias = g_strdup(m->alias);
1640 info->name = g_strdup(m->name);
1641 info->cpu_max = !m->max_cpus ? 1 : m->max_cpus;
1643 entry = g_malloc0(sizeof(*entry));
1644 entry->value = info;
1645 entry->next = mach_list;
1646 mach_list = entry;
1649 return mach_list;
1652 /***********************************************************/
1653 /* main execution loop */
1655 struct vm_change_state_entry {
1656 VMChangeStateHandler *cb;
1657 void *opaque;
1658 QLIST_ENTRY (vm_change_state_entry) entries;
1661 static QLIST_HEAD(vm_change_state_head, vm_change_state_entry) vm_change_state_head;
1663 VMChangeStateEntry *qemu_add_vm_change_state_handler(VMChangeStateHandler *cb,
1664 void *opaque)
1666 VMChangeStateEntry *e;
1668 e = g_malloc0(sizeof (*e));
1670 e->cb = cb;
1671 e->opaque = opaque;
1672 QLIST_INSERT_HEAD(&vm_change_state_head, e, entries);
1673 return e;
1676 void qemu_del_vm_change_state_handler(VMChangeStateEntry *e)
1678 QLIST_REMOVE (e, entries);
1679 g_free (e);
1682 void vm_state_notify(int running, RunState state)
1684 VMChangeStateEntry *e;
1686 trace_vm_state_notify(running, state);
1688 for (e = vm_change_state_head.lh_first; e; e = e->entries.le_next) {
1689 e->cb(e->opaque, running, state);
1693 void vm_start(void)
1695 if (!runstate_is_running()) {
1696 cpu_enable_ticks();
1697 runstate_set(RUN_STATE_RUNNING);
1698 vm_state_notify(1, RUN_STATE_RUNNING);
1699 resume_all_vcpus();
1700 monitor_protocol_event(QEVENT_RESUME, NULL);
1704 /* reset/shutdown handler */
1706 typedef struct QEMUResetEntry {
1707 QTAILQ_ENTRY(QEMUResetEntry) entry;
1708 QEMUResetHandler *func;
1709 void *opaque;
1710 } QEMUResetEntry;
1712 static QTAILQ_HEAD(reset_handlers, QEMUResetEntry) reset_handlers =
1713 QTAILQ_HEAD_INITIALIZER(reset_handlers);
1714 static int reset_requested;
1715 static int shutdown_requested, shutdown_signal = -1;
1716 static pid_t shutdown_pid;
1717 static int powerdown_requested;
1718 static int debug_requested;
1719 static int suspend_requested;
1720 static WakeupReason wakeup_reason;
1721 static NotifierList powerdown_notifiers =
1722 NOTIFIER_LIST_INITIALIZER(powerdown_notifiers);
1723 static NotifierList suspend_notifiers =
1724 NOTIFIER_LIST_INITIALIZER(suspend_notifiers);
1725 static NotifierList wakeup_notifiers =
1726 NOTIFIER_LIST_INITIALIZER(wakeup_notifiers);
1727 static uint32_t wakeup_reason_mask = ~(1 << QEMU_WAKEUP_REASON_NONE);
1728 static RunState vmstop_requested = RUN_STATE_MAX;
1730 int qemu_shutdown_requested_get(void)
1732 return shutdown_requested;
1735 int qemu_reset_requested_get(void)
1737 return reset_requested;
1740 static int qemu_shutdown_requested(void)
1742 int r = shutdown_requested;
1743 shutdown_requested = 0;
1744 return r;
1747 static void qemu_kill_report(void)
1749 if (!qtest_enabled() && shutdown_signal != -1) {
1750 fprintf(stderr, "qemu: terminating on signal %d", shutdown_signal);
1751 if (shutdown_pid == 0) {
1752 /* This happens for eg ^C at the terminal, so it's worth
1753 * avoiding printing an odd message in that case.
1755 fputc('\n', stderr);
1756 } else {
1757 fprintf(stderr, " from pid " FMT_pid "\n", shutdown_pid);
1759 shutdown_signal = -1;
1763 static int qemu_reset_requested(void)
1765 int r = reset_requested;
1766 reset_requested = 0;
1767 return r;
1770 static int qemu_suspend_requested(void)
1772 int r = suspend_requested;
1773 suspend_requested = 0;
1774 return r;
1777 static WakeupReason qemu_wakeup_requested(void)
1779 return wakeup_reason;
1782 static int qemu_powerdown_requested(void)
1784 int r = powerdown_requested;
1785 powerdown_requested = 0;
1786 return r;
1789 static int qemu_debug_requested(void)
1791 int r = debug_requested;
1792 debug_requested = 0;
1793 return r;
1796 /* We use RUN_STATE_MAX but any invalid value will do */
1797 static bool qemu_vmstop_requested(RunState *r)
1799 if (vmstop_requested < RUN_STATE_MAX) {
1800 *r = vmstop_requested;
1801 vmstop_requested = RUN_STATE_MAX;
1802 return true;
1805 return false;
1808 void qemu_register_reset(QEMUResetHandler *func, void *opaque)
1810 QEMUResetEntry *re = g_malloc0(sizeof(QEMUResetEntry));
1812 re->func = func;
1813 re->opaque = opaque;
1814 QTAILQ_INSERT_TAIL(&reset_handlers, re, entry);
1817 void qemu_unregister_reset(QEMUResetHandler *func, void *opaque)
1819 QEMUResetEntry *re;
1821 QTAILQ_FOREACH(re, &reset_handlers, entry) {
1822 if (re->func == func && re->opaque == opaque) {
1823 QTAILQ_REMOVE(&reset_handlers, re, entry);
1824 g_free(re);
1825 return;
1830 void qemu_devices_reset(void)
1832 QEMUResetEntry *re, *nre;
1834 /* reset all devices */
1835 QTAILQ_FOREACH_SAFE(re, &reset_handlers, entry, nre) {
1836 re->func(re->opaque);
1840 void qemu_system_reset(bool report)
1842 if (current_machine && current_machine->reset) {
1843 current_machine->reset();
1844 } else {
1845 qemu_devices_reset();
1847 if (report) {
1848 monitor_protocol_event(QEVENT_RESET, NULL);
1850 cpu_synchronize_all_post_reset();
1853 void qemu_system_reset_request(void)
1855 if (no_reboot) {
1856 shutdown_requested = 1;
1857 } else {
1858 reset_requested = 1;
1860 cpu_stop_current();
1861 qemu_notify_event();
1864 static void qemu_system_suspend(void)
1866 pause_all_vcpus();
1867 notifier_list_notify(&suspend_notifiers, NULL);
1868 runstate_set(RUN_STATE_SUSPENDED);
1869 monitor_protocol_event(QEVENT_SUSPEND, NULL);
1872 void qemu_system_suspend_request(void)
1874 if (runstate_check(RUN_STATE_SUSPENDED)) {
1875 return;
1877 suspend_requested = 1;
1878 cpu_stop_current();
1879 qemu_notify_event();
1882 void qemu_register_suspend_notifier(Notifier *notifier)
1884 notifier_list_add(&suspend_notifiers, notifier);
1887 void qemu_system_wakeup_request(WakeupReason reason)
1889 if (!runstate_check(RUN_STATE_SUSPENDED)) {
1890 return;
1892 if (!(wakeup_reason_mask & (1 << reason))) {
1893 return;
1895 runstate_set(RUN_STATE_RUNNING);
1896 wakeup_reason = reason;
1897 qemu_notify_event();
1900 void qemu_system_wakeup_enable(WakeupReason reason, bool enabled)
1902 if (enabled) {
1903 wakeup_reason_mask |= (1 << reason);
1904 } else {
1905 wakeup_reason_mask &= ~(1 << reason);
1909 void qemu_register_wakeup_notifier(Notifier *notifier)
1911 notifier_list_add(&wakeup_notifiers, notifier);
1914 void qemu_system_killed(int signal, pid_t pid)
1916 shutdown_signal = signal;
1917 shutdown_pid = pid;
1918 no_shutdown = 0;
1919 qemu_system_shutdown_request();
1922 void qemu_system_shutdown_request(void)
1924 shutdown_requested = 1;
1925 qemu_notify_event();
1928 static void qemu_system_powerdown(void)
1930 monitor_protocol_event(QEVENT_POWERDOWN, NULL);
1931 notifier_list_notify(&powerdown_notifiers, NULL);
1934 void qemu_system_powerdown_request(void)
1936 powerdown_requested = 1;
1937 qemu_notify_event();
1940 void qemu_register_powerdown_notifier(Notifier *notifier)
1942 notifier_list_add(&powerdown_notifiers, notifier);
1945 void qemu_system_debug_request(void)
1947 debug_requested = 1;
1948 qemu_notify_event();
1951 void qemu_system_vmstop_request(RunState state)
1953 vmstop_requested = state;
1954 qemu_notify_event();
1957 static bool main_loop_should_exit(void)
1959 RunState r;
1960 if (qemu_debug_requested()) {
1961 vm_stop(RUN_STATE_DEBUG);
1963 if (qemu_suspend_requested()) {
1964 qemu_system_suspend();
1966 if (qemu_shutdown_requested()) {
1967 qemu_kill_report();
1968 monitor_protocol_event(QEVENT_SHUTDOWN, NULL);
1969 if (no_shutdown) {
1970 vm_stop(RUN_STATE_SHUTDOWN);
1971 } else {
1972 return true;
1975 if (qemu_reset_requested()) {
1976 pause_all_vcpus();
1977 cpu_synchronize_all_states();
1978 qemu_system_reset(VMRESET_REPORT);
1979 resume_all_vcpus();
1980 if (runstate_needs_reset()) {
1981 runstate_set(RUN_STATE_PAUSED);
1984 if (qemu_wakeup_requested()) {
1985 pause_all_vcpus();
1986 cpu_synchronize_all_states();
1987 qemu_system_reset(VMRESET_SILENT);
1988 notifier_list_notify(&wakeup_notifiers, &wakeup_reason);
1989 wakeup_reason = QEMU_WAKEUP_REASON_NONE;
1990 resume_all_vcpus();
1991 monitor_protocol_event(QEVENT_WAKEUP, NULL);
1993 if (qemu_powerdown_requested()) {
1994 qemu_system_powerdown();
1996 if (qemu_vmstop_requested(&r)) {
1997 vm_stop(r);
1999 return false;
2002 static void main_loop(void)
2004 bool nonblocking;
2005 int last_io = 0;
2006 #ifdef CONFIG_PROFILER
2007 int64_t ti;
2008 #endif
2009 do {
2010 nonblocking = !kvm_enabled() && !xen_enabled() && last_io > 0;
2011 #ifdef CONFIG_PROFILER
2012 ti = profile_getclock();
2013 #endif
2014 last_io = main_loop_wait(nonblocking);
2015 #ifdef CONFIG_PROFILER
2016 dev_time += profile_getclock() - ti;
2017 #endif
2018 } while (!main_loop_should_exit());
2021 static void version(void)
2023 printf("QEMU emulator version " QEMU_VERSION QEMU_PKGVERSION ", Copyright (c) 2003-2008 Fabrice Bellard\n");
2026 static void help(int exitcode)
2028 version();
2029 printf("usage: %s [options] [disk_image]\n\n"
2030 "'disk_image' is a raw hard disk image for IDE hard disk 0\n\n",
2031 error_get_progname());
2033 #define QEMU_OPTIONS_GENERATE_HELP
2034 #include "qemu-options-wrapper.h"
2036 printf("\nDuring emulation, the following keys are useful:\n"
2037 "ctrl-alt-f toggle full screen\n"
2038 "ctrl-alt-n switch to virtual console 'n'\n"
2039 "ctrl-alt toggle mouse and keyboard grab\n"
2040 "\n"
2041 "When using -nographic, press 'ctrl-a h' to get some help.\n");
2043 exit(exitcode);
2046 #define HAS_ARG 0x0001
2048 typedef struct QEMUOption {
2049 const char *name;
2050 int flags;
2051 int index;
2052 uint32_t arch_mask;
2053 } QEMUOption;
2055 static const QEMUOption qemu_options[] = {
2056 { "h", 0, QEMU_OPTION_h, QEMU_ARCH_ALL },
2057 #define QEMU_OPTIONS_GENERATE_OPTIONS
2058 #include "qemu-options-wrapper.h"
2059 { NULL },
2062 static bool vga_available(void)
2064 return object_class_by_name("VGA") || object_class_by_name("isa-vga");
2067 static bool cirrus_vga_available(void)
2069 return object_class_by_name("cirrus-vga")
2070 || object_class_by_name("isa-cirrus-vga");
2073 static bool vmware_vga_available(void)
2075 return object_class_by_name("vmware-svga");
2078 static bool qxl_vga_available(void)
2080 return object_class_by_name("qxl-vga");
2083 static void select_vgahw (const char *p)
2085 const char *opts;
2087 vga_interface_type = VGA_NONE;
2088 if (strstart(p, "std", &opts)) {
2089 if (vga_available()) {
2090 vga_interface_type = VGA_STD;
2091 } else {
2092 fprintf(stderr, "Error: standard VGA not available\n");
2093 exit(0);
2095 } else if (strstart(p, "cirrus", &opts)) {
2096 if (cirrus_vga_available()) {
2097 vga_interface_type = VGA_CIRRUS;
2098 } else {
2099 fprintf(stderr, "Error: Cirrus VGA not available\n");
2100 exit(0);
2102 } else if (strstart(p, "vmware", &opts)) {
2103 if (vmware_vga_available()) {
2104 vga_interface_type = VGA_VMWARE;
2105 } else {
2106 fprintf(stderr, "Error: VMWare SVGA not available\n");
2107 exit(0);
2109 } else if (strstart(p, "xenfb", &opts)) {
2110 vga_interface_type = VGA_XENFB;
2111 } else if (strstart(p, "qxl", &opts)) {
2112 if (qxl_vga_available()) {
2113 vga_interface_type = VGA_QXL;
2114 } else {
2115 fprintf(stderr, "Error: QXL VGA not available\n");
2116 exit(0);
2118 } else if (!strstart(p, "none", &opts)) {
2119 invalid_vga:
2120 fprintf(stderr, "Unknown vga type: %s\n", p);
2121 exit(1);
2123 while (*opts) {
2124 const char *nextopt;
2126 if (strstart(opts, ",retrace=", &nextopt)) {
2127 opts = nextopt;
2128 if (strstart(opts, "dumb", &nextopt))
2129 vga_retrace_method = VGA_RETRACE_DUMB;
2130 else if (strstart(opts, "precise", &nextopt))
2131 vga_retrace_method = VGA_RETRACE_PRECISE;
2132 else goto invalid_vga;
2133 } else goto invalid_vga;
2134 opts = nextopt;
2138 static DisplayType select_display(const char *p)
2140 const char *opts;
2141 DisplayType display = DT_DEFAULT;
2143 if (strstart(p, "sdl", &opts)) {
2144 #ifdef CONFIG_SDL
2145 display = DT_SDL;
2146 while (*opts) {
2147 const char *nextopt;
2149 if (strstart(opts, ",frame=", &nextopt)) {
2150 opts = nextopt;
2151 if (strstart(opts, "on", &nextopt)) {
2152 no_frame = 0;
2153 } else if (strstart(opts, "off", &nextopt)) {
2154 no_frame = 1;
2155 } else {
2156 goto invalid_sdl_args;
2158 } else if (strstart(opts, ",alt_grab=", &nextopt)) {
2159 opts = nextopt;
2160 if (strstart(opts, "on", &nextopt)) {
2161 alt_grab = 1;
2162 } else if (strstart(opts, "off", &nextopt)) {
2163 alt_grab = 0;
2164 } else {
2165 goto invalid_sdl_args;
2167 } else if (strstart(opts, ",ctrl_grab=", &nextopt)) {
2168 opts = nextopt;
2169 if (strstart(opts, "on", &nextopt)) {
2170 ctrl_grab = 1;
2171 } else if (strstart(opts, "off", &nextopt)) {
2172 ctrl_grab = 0;
2173 } else {
2174 goto invalid_sdl_args;
2176 } else if (strstart(opts, ",window_close=", &nextopt)) {
2177 opts = nextopt;
2178 if (strstart(opts, "on", &nextopt)) {
2179 no_quit = 0;
2180 } else if (strstart(opts, "off", &nextopt)) {
2181 no_quit = 1;
2182 } else {
2183 goto invalid_sdl_args;
2185 } else {
2186 invalid_sdl_args:
2187 fprintf(stderr, "Invalid SDL option string: %s\n", p);
2188 exit(1);
2190 opts = nextopt;
2192 #else
2193 fprintf(stderr, "SDL support is disabled\n");
2194 exit(1);
2195 #endif
2196 } else if (strstart(p, "vnc", &opts)) {
2197 #ifdef CONFIG_VNC
2198 display_remote++;
2200 if (*opts) {
2201 const char *nextopt;
2203 if (strstart(opts, "=", &nextopt)) {
2204 vnc_display = nextopt;
2207 if (!vnc_display) {
2208 fprintf(stderr, "VNC requires a display argument vnc=<display>\n");
2209 exit(1);
2211 #else
2212 fprintf(stderr, "VNC support is disabled\n");
2213 exit(1);
2214 #endif
2215 } else if (strstart(p, "curses", &opts)) {
2216 #ifdef CONFIG_CURSES
2217 display = DT_CURSES;
2218 #else
2219 fprintf(stderr, "Curses support is disabled\n");
2220 exit(1);
2221 #endif
2222 } else if (strstart(p, "gtk", &opts)) {
2223 #ifdef CONFIG_GTK
2224 display = DT_GTK;
2225 #else
2226 fprintf(stderr, "GTK support is disabled\n");
2227 exit(1);
2228 #endif
2229 } else if (strstart(p, "none", &opts)) {
2230 display = DT_NONE;
2231 } else {
2232 fprintf(stderr, "Unknown display type: %s\n", p);
2233 exit(1);
2236 return display;
2239 static int balloon_parse(const char *arg)
2241 QemuOpts *opts;
2243 if (strcmp(arg, "none") == 0) {
2244 return 0;
2247 if (!strncmp(arg, "virtio", 6)) {
2248 if (arg[6] == ',') {
2249 /* have params -> parse them */
2250 opts = qemu_opts_parse(qemu_find_opts("device"), arg+7, 0);
2251 if (!opts)
2252 return -1;
2253 } else {
2254 /* create empty opts */
2255 opts = qemu_opts_create_nofail(qemu_find_opts("device"));
2257 qemu_opt_set(opts, "driver", "virtio-balloon");
2258 return 0;
2261 return -1;
2264 char *qemu_find_file(int type, const char *name)
2266 int i;
2267 const char *subdir;
2268 char *buf;
2270 /* Try the name as a straight path first */
2271 if (access(name, R_OK) == 0) {
2272 trace_load_file(name, name);
2273 return g_strdup(name);
2276 switch (type) {
2277 case QEMU_FILE_TYPE_BIOS:
2278 subdir = "";
2279 break;
2280 case QEMU_FILE_TYPE_KEYMAP:
2281 subdir = "keymaps/";
2282 break;
2283 default:
2284 abort();
2287 for (i = 0; i < data_dir_idx; i++) {
2288 buf = g_strdup_printf("%s/%s%s", data_dir[i], subdir, name);
2289 if (access(buf, R_OK) == 0) {
2290 trace_load_file(name, buf);
2291 return buf;
2293 g_free(buf);
2295 return NULL;
2298 static int device_help_func(QemuOpts *opts, void *opaque)
2300 return qdev_device_help(opts);
2303 static int device_init_func(QemuOpts *opts, void *opaque)
2305 DeviceState *dev;
2307 dev = qdev_device_add(opts);
2308 if (!dev)
2309 return -1;
2310 object_unref(OBJECT(dev));
2311 return 0;
2314 static int chardev_init_func(QemuOpts *opts, void *opaque)
2316 Error *local_err = NULL;
2318 qemu_chr_new_from_opts(opts, NULL, &local_err);
2319 if (error_is_set(&local_err)) {
2320 error_report("%s", error_get_pretty(local_err));
2321 error_free(local_err);
2322 return -1;
2324 return 0;
2327 #ifdef CONFIG_VIRTFS
2328 static int fsdev_init_func(QemuOpts *opts, void *opaque)
2330 int ret;
2331 ret = qemu_fsdev_add(opts);
2333 return ret;
2335 #endif
2337 static int mon_init_func(QemuOpts *opts, void *opaque)
2339 CharDriverState *chr;
2340 const char *chardev;
2341 const char *mode;
2342 int flags;
2344 mode = qemu_opt_get(opts, "mode");
2345 if (mode == NULL) {
2346 mode = "readline";
2348 if (strcmp(mode, "readline") == 0) {
2349 flags = MONITOR_USE_READLINE;
2350 } else if (strcmp(mode, "control") == 0) {
2351 flags = MONITOR_USE_CONTROL;
2352 } else {
2353 fprintf(stderr, "unknown monitor mode \"%s\"\n", mode);
2354 exit(1);
2357 if (qemu_opt_get_bool(opts, "pretty", 0))
2358 flags |= MONITOR_USE_PRETTY;
2360 if (qemu_opt_get_bool(opts, "default", 0))
2361 flags |= MONITOR_IS_DEFAULT;
2363 chardev = qemu_opt_get(opts, "chardev");
2364 chr = qemu_chr_find(chardev);
2365 if (chr == NULL) {
2366 fprintf(stderr, "chardev \"%s\" not found\n", chardev);
2367 exit(1);
2370 qemu_chr_fe_claim_no_fail(chr);
2371 monitor_init(chr, flags);
2372 return 0;
2375 static void monitor_parse(const char *optarg, const char *mode)
2377 static int monitor_device_index = 0;
2378 QemuOpts *opts;
2379 const char *p;
2380 char label[32];
2381 int def = 0;
2383 if (strstart(optarg, "chardev:", &p)) {
2384 snprintf(label, sizeof(label), "%s", p);
2385 } else {
2386 snprintf(label, sizeof(label), "compat_monitor%d",
2387 monitor_device_index);
2388 if (monitor_device_index == 0) {
2389 def = 1;
2391 opts = qemu_chr_parse_compat(label, optarg);
2392 if (!opts) {
2393 fprintf(stderr, "parse error: %s\n", optarg);
2394 exit(1);
2398 opts = qemu_opts_create(qemu_find_opts("mon"), label, 1, NULL);
2399 if (!opts) {
2400 fprintf(stderr, "duplicate chardev: %s\n", label);
2401 exit(1);
2403 qemu_opt_set(opts, "mode", mode);
2404 qemu_opt_set(opts, "chardev", label);
2405 if (def)
2406 qemu_opt_set(opts, "default", "on");
2407 monitor_device_index++;
2410 struct device_config {
2411 enum {
2412 DEV_USB, /* -usbdevice */
2413 DEV_BT, /* -bt */
2414 DEV_SERIAL, /* -serial */
2415 DEV_PARALLEL, /* -parallel */
2416 DEV_VIRTCON, /* -virtioconsole */
2417 DEV_DEBUGCON, /* -debugcon */
2418 DEV_GDB, /* -gdb, -s */
2419 DEV_SCLP, /* s390 sclp */
2420 } type;
2421 const char *cmdline;
2422 Location loc;
2423 QTAILQ_ENTRY(device_config) next;
2426 static QTAILQ_HEAD(, device_config) device_configs =
2427 QTAILQ_HEAD_INITIALIZER(device_configs);
2429 static void add_device_config(int type, const char *cmdline)
2431 struct device_config *conf;
2433 conf = g_malloc0(sizeof(*conf));
2434 conf->type = type;
2435 conf->cmdline = cmdline;
2436 loc_save(&conf->loc);
2437 QTAILQ_INSERT_TAIL(&device_configs, conf, next);
2440 static int foreach_device_config(int type, int (*func)(const char *cmdline))
2442 struct device_config *conf;
2443 int rc;
2445 QTAILQ_FOREACH(conf, &device_configs, next) {
2446 if (conf->type != type)
2447 continue;
2448 loc_push_restore(&conf->loc);
2449 rc = func(conf->cmdline);
2450 loc_pop(&conf->loc);
2451 if (0 != rc)
2452 return rc;
2454 return 0;
2457 static int serial_parse(const char *devname)
2459 static int index = 0;
2460 char label[32];
2462 if (strcmp(devname, "none") == 0)
2463 return 0;
2464 if (index == MAX_SERIAL_PORTS) {
2465 fprintf(stderr, "qemu: too many serial ports\n");
2466 exit(1);
2468 snprintf(label, sizeof(label), "serial%d", index);
2469 serial_hds[index] = qemu_chr_new(label, devname, NULL);
2470 if (!serial_hds[index]) {
2471 fprintf(stderr, "qemu: could not connect serial device"
2472 " to character backend '%s'\n", devname);
2473 return -1;
2475 index++;
2476 return 0;
2479 static int parallel_parse(const char *devname)
2481 static int index = 0;
2482 char label[32];
2484 if (strcmp(devname, "none") == 0)
2485 return 0;
2486 if (index == MAX_PARALLEL_PORTS) {
2487 fprintf(stderr, "qemu: too many parallel ports\n");
2488 exit(1);
2490 snprintf(label, sizeof(label), "parallel%d", index);
2491 parallel_hds[index] = qemu_chr_new(label, devname, NULL);
2492 if (!parallel_hds[index]) {
2493 fprintf(stderr, "qemu: could not connect parallel device"
2494 " to character backend '%s'\n", devname);
2495 return -1;
2497 index++;
2498 return 0;
2501 static int virtcon_parse(const char *devname)
2503 QemuOptsList *device = qemu_find_opts("device");
2504 static int index = 0;
2505 char label[32];
2506 QemuOpts *bus_opts, *dev_opts;
2508 if (strcmp(devname, "none") == 0)
2509 return 0;
2510 if (index == MAX_VIRTIO_CONSOLES) {
2511 fprintf(stderr, "qemu: too many virtio consoles\n");
2512 exit(1);
2515 bus_opts = qemu_opts_create_nofail(device);
2516 if (arch_type == QEMU_ARCH_S390X) {
2517 qemu_opt_set(bus_opts, "driver", "virtio-serial-s390");
2518 } else {
2519 qemu_opt_set(bus_opts, "driver", "virtio-serial-pci");
2522 dev_opts = qemu_opts_create_nofail(device);
2523 qemu_opt_set(dev_opts, "driver", "virtconsole");
2525 snprintf(label, sizeof(label), "virtcon%d", index);
2526 virtcon_hds[index] = qemu_chr_new(label, devname, NULL);
2527 if (!virtcon_hds[index]) {
2528 fprintf(stderr, "qemu: could not connect virtio console"
2529 " to character backend '%s'\n", devname);
2530 return -1;
2532 qemu_opt_set(dev_opts, "chardev", label);
2534 index++;
2535 return 0;
2538 static int sclp_parse(const char *devname)
2540 QemuOptsList *device = qemu_find_opts("device");
2541 static int index = 0;
2542 char label[32];
2543 QemuOpts *dev_opts;
2545 if (strcmp(devname, "none") == 0) {
2546 return 0;
2548 if (index == MAX_SCLP_CONSOLES) {
2549 fprintf(stderr, "qemu: too many sclp consoles\n");
2550 exit(1);
2553 assert(arch_type == QEMU_ARCH_S390X);
2555 dev_opts = qemu_opts_create(device, NULL, 0, NULL);
2556 qemu_opt_set(dev_opts, "driver", "sclpconsole");
2558 snprintf(label, sizeof(label), "sclpcon%d", index);
2559 sclp_hds[index] = qemu_chr_new(label, devname, NULL);
2560 if (!sclp_hds[index]) {
2561 fprintf(stderr, "qemu: could not connect sclp console"
2562 " to character backend '%s'\n", devname);
2563 return -1;
2565 qemu_opt_set(dev_opts, "chardev", label);
2567 index++;
2568 return 0;
2571 static int debugcon_parse(const char *devname)
2573 QemuOpts *opts;
2575 if (!qemu_chr_new("debugcon", devname, NULL)) {
2576 exit(1);
2578 opts = qemu_opts_create(qemu_find_opts("device"), "debugcon", 1, NULL);
2579 if (!opts) {
2580 fprintf(stderr, "qemu: already have a debugcon device\n");
2581 exit(1);
2583 qemu_opt_set(opts, "driver", "isa-debugcon");
2584 qemu_opt_set(opts, "chardev", "debugcon");
2585 return 0;
2588 static QEMUMachine *machine_parse(const char *name)
2590 QEMUMachine *m, *machine = NULL;
2592 if (name) {
2593 machine = find_machine(name);
2595 if (machine) {
2596 return machine;
2598 printf("Supported machines are:\n");
2599 for (m = first_machine; m != NULL; m = m->next) {
2600 if (m->alias) {
2601 printf("%-20s %s (alias of %s)\n", m->alias, m->desc, m->name);
2603 printf("%-20s %s%s\n", m->name, m->desc,
2604 m->is_default ? " (default)" : "");
2606 exit(!name || !is_help_option(name));
2609 static int tcg_init(void)
2611 tcg_exec_init(tcg_tb_size * 1024 * 1024);
2612 return 0;
2615 static struct {
2616 const char *opt_name;
2617 const char *name;
2618 int (*available)(void);
2619 int (*init)(void);
2620 bool *allowed;
2621 } accel_list[] = {
2622 { "tcg", "tcg", tcg_available, tcg_init, &tcg_allowed },
2623 { "xen", "Xen", xen_available, xen_init, &xen_allowed },
2624 { "kvm", "KVM", kvm_available, kvm_init, &kvm_allowed },
2625 { "qtest", "QTest", qtest_available, qtest_init, &qtest_allowed },
2628 static int configure_accelerator(void)
2630 const char *p;
2631 char buf[10];
2632 int i, ret;
2633 bool accel_initialised = false;
2634 bool init_failed = false;
2636 p = qemu_opt_get(qemu_get_machine_opts(), "accel");
2637 if (p == NULL) {
2638 /* Use the default "accelerator", tcg */
2639 p = "tcg";
2642 while (!accel_initialised && *p != '\0') {
2643 if (*p == ':') {
2644 p++;
2646 p = get_opt_name(buf, sizeof (buf), p, ':');
2647 for (i = 0; i < ARRAY_SIZE(accel_list); i++) {
2648 if (strcmp(accel_list[i].opt_name, buf) == 0) {
2649 if (!accel_list[i].available()) {
2650 printf("%s not supported for this target\n",
2651 accel_list[i].name);
2652 continue;
2654 *(accel_list[i].allowed) = true;
2655 ret = accel_list[i].init();
2656 if (ret < 0) {
2657 init_failed = true;
2658 fprintf(stderr, "failed to initialize %s: %s\n",
2659 accel_list[i].name,
2660 strerror(-ret));
2661 *(accel_list[i].allowed) = false;
2662 } else {
2663 accel_initialised = true;
2665 break;
2668 if (i == ARRAY_SIZE(accel_list)) {
2669 fprintf(stderr, "\"%s\" accelerator does not exist.\n", buf);
2673 if (!accel_initialised) {
2674 if (!init_failed) {
2675 fprintf(stderr, "No accelerator found!\n");
2677 exit(1);
2680 if (init_failed) {
2681 fprintf(stderr, "Back to %s accelerator.\n", accel_list[i].name);
2684 return !accel_initialised;
2687 void qemu_add_exit_notifier(Notifier *notify)
2689 notifier_list_add(&exit_notifiers, notify);
2692 void qemu_remove_exit_notifier(Notifier *notify)
2694 notifier_remove(notify);
2697 static void qemu_run_exit_notifiers(void)
2699 notifier_list_notify(&exit_notifiers, NULL);
2702 void qemu_add_machine_init_done_notifier(Notifier *notify)
2704 notifier_list_add(&machine_init_done_notifiers, notify);
2707 static void qemu_run_machine_init_done_notifiers(void)
2709 notifier_list_notify(&machine_init_done_notifiers, NULL);
2712 static const QEMUOption *lookup_opt(int argc, char **argv,
2713 const char **poptarg, int *poptind)
2715 const QEMUOption *popt;
2716 int optind = *poptind;
2717 char *r = argv[optind];
2718 const char *optarg;
2720 loc_set_cmdline(argv, optind, 1);
2721 optind++;
2722 /* Treat --foo the same as -foo. */
2723 if (r[1] == '-')
2724 r++;
2725 popt = qemu_options;
2726 for(;;) {
2727 if (!popt->name) {
2728 error_report("invalid option");
2729 exit(1);
2731 if (!strcmp(popt->name, r + 1))
2732 break;
2733 popt++;
2735 if (popt->flags & HAS_ARG) {
2736 if (optind >= argc) {
2737 error_report("requires an argument");
2738 exit(1);
2740 optarg = argv[optind++];
2741 loc_set_cmdline(argv, optind - 2, 2);
2742 } else {
2743 optarg = NULL;
2746 *poptarg = optarg;
2747 *poptind = optind;
2749 return popt;
2752 static gpointer malloc_and_trace(gsize n_bytes)
2754 void *ptr = malloc(n_bytes);
2755 trace_g_malloc(n_bytes, ptr);
2756 return ptr;
2759 static gpointer realloc_and_trace(gpointer mem, gsize n_bytes)
2761 void *ptr = realloc(mem, n_bytes);
2762 trace_g_realloc(mem, n_bytes, ptr);
2763 return ptr;
2766 static void free_and_trace(gpointer mem)
2768 trace_g_free(mem);
2769 free(mem);
2772 static int object_set_property(const char *name, const char *value, void *opaque)
2774 Object *obj = OBJECT(opaque);
2775 StringInputVisitor *siv;
2776 Error *local_err = NULL;
2778 if (strcmp(name, "qom-type") == 0 || strcmp(name, "id") == 0) {
2779 return 0;
2782 siv = string_input_visitor_new(value);
2783 object_property_set(obj, string_input_get_visitor(siv), name, &local_err);
2784 string_input_visitor_cleanup(siv);
2786 if (local_err) {
2787 qerror_report_err(local_err);
2788 error_free(local_err);
2789 return -1;
2792 return 0;
2795 static int object_create(QemuOpts *opts, void *opaque)
2797 const char *type = qemu_opt_get(opts, "qom-type");
2798 const char *id = qemu_opts_id(opts);
2799 Object *obj;
2801 g_assert(type != NULL);
2803 if (id == NULL) {
2804 qerror_report(QERR_MISSING_PARAMETER, "id");
2805 return -1;
2808 obj = object_new(type);
2809 if (qemu_opt_foreach(opts, object_set_property, obj, 1) < 0) {
2810 return -1;
2813 object_property_add_child(container_get(object_get_root(), "/objects"),
2814 id, obj, NULL);
2816 return 0;
2819 int main(int argc, char **argv, char **envp)
2821 int i;
2822 int snapshot, linux_boot;
2823 const char *icount_option = NULL;
2824 const char *initrd_filename;
2825 const char *kernel_filename, *kernel_cmdline;
2826 const char *boot_order;
2827 DisplayState *ds;
2828 int cyls, heads, secs, translation;
2829 QemuOpts *hda_opts = NULL, *opts, *machine_opts;
2830 QemuOptsList *olist;
2831 int optind;
2832 const char *optarg;
2833 const char *loadvm = NULL;
2834 QEMUMachine *machine;
2835 const char *cpu_model;
2836 const char *vga_model = "none";
2837 const char *pid_file = NULL;
2838 const char *incoming = NULL;
2839 #ifdef CONFIG_VNC
2840 int show_vnc_port = 0;
2841 #endif
2842 bool defconfig = true;
2843 bool userconfig = true;
2844 const char *log_mask = NULL;
2845 const char *log_file = NULL;
2846 GMemVTable mem_trace = {
2847 .malloc = malloc_and_trace,
2848 .realloc = realloc_and_trace,
2849 .free = free_and_trace,
2851 const char *trace_events = NULL;
2852 const char *trace_file = NULL;
2854 atexit(qemu_run_exit_notifiers);
2855 error_set_progname(argv[0]);
2857 g_mem_set_vtable(&mem_trace);
2858 if (!g_thread_supported()) {
2859 #if !GLIB_CHECK_VERSION(2, 31, 0)
2860 g_thread_init(NULL);
2861 #else
2862 fprintf(stderr, "glib threading failed to initialize.\n");
2863 exit(1);
2864 #endif
2867 module_call_init(MODULE_INIT_QOM);
2869 qemu_add_opts(&qemu_drive_opts);
2870 qemu_add_opts(&qemu_chardev_opts);
2871 qemu_add_opts(&qemu_device_opts);
2872 qemu_add_opts(&qemu_netdev_opts);
2873 qemu_add_opts(&qemu_net_opts);
2874 qemu_add_opts(&qemu_rtc_opts);
2875 qemu_add_opts(&qemu_global_opts);
2876 qemu_add_opts(&qemu_mon_opts);
2877 qemu_add_opts(&qemu_trace_opts);
2878 qemu_add_opts(&qemu_option_rom_opts);
2879 qemu_add_opts(&qemu_machine_opts);
2880 qemu_add_opts(&qemu_smp_opts);
2881 qemu_add_opts(&qemu_boot_opts);
2882 qemu_add_opts(&qemu_sandbox_opts);
2883 qemu_add_opts(&qemu_add_fd_opts);
2884 qemu_add_opts(&qemu_object_opts);
2885 qemu_add_opts(&qemu_tpmdev_opts);
2886 qemu_add_opts(&qemu_realtime_opts);
2887 qemu_add_opts(&qemu_msg_opts);
2889 runstate_init();
2891 init_clocks();
2892 rtc_clock = QEMU_CLOCK_HOST;
2894 qemu_cache_utils_init(envp);
2896 QLIST_INIT (&vm_change_state_head);
2897 os_setup_early_signal_handling();
2899 module_call_init(MODULE_INIT_MACHINE);
2900 machine = find_default_machine();
2901 cpu_model = NULL;
2902 ram_size = 0;
2903 snapshot = 0;
2904 cyls = heads = secs = 0;
2905 translation = BIOS_ATA_TRANSLATION_AUTO;
2907 for (i = 0; i < MAX_NODES; i++) {
2908 node_mem[i] = 0;
2909 node_cpumask[i] = bitmap_new(MAX_CPUMASK_BITS);
2912 nb_numa_nodes = 0;
2913 nb_nics = 0;
2915 bdrv_init_with_whitelist();
2917 autostart= 1;
2919 /* first pass of option parsing */
2920 optind = 1;
2921 while (optind < argc) {
2922 if (argv[optind][0] != '-') {
2923 /* disk image */
2924 optind++;
2925 continue;
2926 } else {
2927 const QEMUOption *popt;
2929 popt = lookup_opt(argc, argv, &optarg, &optind);
2930 switch (popt->index) {
2931 case QEMU_OPTION_nodefconfig:
2932 defconfig = false;
2933 break;
2934 case QEMU_OPTION_nouserconfig:
2935 userconfig = false;
2936 break;
2941 if (defconfig) {
2942 int ret;
2943 ret = qemu_read_default_config_files(userconfig);
2944 if (ret < 0) {
2945 exit(1);
2949 /* second pass of option parsing */
2950 optind = 1;
2951 for(;;) {
2952 if (optind >= argc)
2953 break;
2954 if (argv[optind][0] != '-') {
2955 hda_opts = drive_add(IF_DEFAULT, 0, argv[optind++], HD_OPTS);
2956 } else {
2957 const QEMUOption *popt;
2959 popt = lookup_opt(argc, argv, &optarg, &optind);
2960 if (!(popt->arch_mask & arch_type)) {
2961 printf("Option %s not supported for this target\n", popt->name);
2962 exit(1);
2964 switch(popt->index) {
2965 case QEMU_OPTION_M:
2966 machine = machine_parse(optarg);
2967 break;
2968 case QEMU_OPTION_no_kvm_irqchip: {
2969 olist = qemu_find_opts("machine");
2970 qemu_opts_parse(olist, "kernel_irqchip=off", 0);
2971 break;
2973 case QEMU_OPTION_cpu:
2974 /* hw initialization will check this */
2975 cpu_model = optarg;
2976 break;
2977 case QEMU_OPTION_hda:
2979 char buf[256];
2980 if (cyls == 0)
2981 snprintf(buf, sizeof(buf), "%s", HD_OPTS);
2982 else
2983 snprintf(buf, sizeof(buf),
2984 "%s,cyls=%d,heads=%d,secs=%d%s",
2985 HD_OPTS , cyls, heads, secs,
2986 translation == BIOS_ATA_TRANSLATION_LBA ?
2987 ",trans=lba" :
2988 translation == BIOS_ATA_TRANSLATION_NONE ?
2989 ",trans=none" : "");
2990 drive_add(IF_DEFAULT, 0, optarg, buf);
2991 break;
2993 case QEMU_OPTION_hdb:
2994 case QEMU_OPTION_hdc:
2995 case QEMU_OPTION_hdd:
2996 drive_add(IF_DEFAULT, popt->index - QEMU_OPTION_hda, optarg,
2997 HD_OPTS);
2998 break;
2999 case QEMU_OPTION_drive:
3000 if (drive_def(optarg) == NULL) {
3001 exit(1);
3003 break;
3004 case QEMU_OPTION_set:
3005 if (qemu_set_option(optarg) != 0)
3006 exit(1);
3007 break;
3008 case QEMU_OPTION_global:
3009 if (qemu_global_option(optarg) != 0)
3010 exit(1);
3011 break;
3012 case QEMU_OPTION_mtdblock:
3013 drive_add(IF_MTD, -1, optarg, MTD_OPTS);
3014 break;
3015 case QEMU_OPTION_sd:
3016 drive_add(IF_SD, -1, optarg, SD_OPTS);
3017 break;
3018 case QEMU_OPTION_pflash:
3019 drive_add(IF_PFLASH, -1, optarg, PFLASH_OPTS);
3020 break;
3021 case QEMU_OPTION_snapshot:
3022 snapshot = 1;
3023 break;
3024 case QEMU_OPTION_hdachs:
3026 const char *p;
3027 p = optarg;
3028 cyls = strtol(p, (char **)&p, 0);
3029 if (cyls < 1 || cyls > 16383)
3030 goto chs_fail;
3031 if (*p != ',')
3032 goto chs_fail;
3033 p++;
3034 heads = strtol(p, (char **)&p, 0);
3035 if (heads < 1 || heads > 16)
3036 goto chs_fail;
3037 if (*p != ',')
3038 goto chs_fail;
3039 p++;
3040 secs = strtol(p, (char **)&p, 0);
3041 if (secs < 1 || secs > 63)
3042 goto chs_fail;
3043 if (*p == ',') {
3044 p++;
3045 if (!strcmp(p, "none"))
3046 translation = BIOS_ATA_TRANSLATION_NONE;
3047 else if (!strcmp(p, "lba"))
3048 translation = BIOS_ATA_TRANSLATION_LBA;
3049 else if (!strcmp(p, "auto"))
3050 translation = BIOS_ATA_TRANSLATION_AUTO;
3051 else
3052 goto chs_fail;
3053 } else if (*p != '\0') {
3054 chs_fail:
3055 fprintf(stderr, "qemu: invalid physical CHS format\n");
3056 exit(1);
3058 if (hda_opts != NULL) {
3059 char num[16];
3060 snprintf(num, sizeof(num), "%d", cyls);
3061 qemu_opt_set(hda_opts, "cyls", num);
3062 snprintf(num, sizeof(num), "%d", heads);
3063 qemu_opt_set(hda_opts, "heads", num);
3064 snprintf(num, sizeof(num), "%d", secs);
3065 qemu_opt_set(hda_opts, "secs", num);
3066 if (translation == BIOS_ATA_TRANSLATION_LBA)
3067 qemu_opt_set(hda_opts, "trans", "lba");
3068 if (translation == BIOS_ATA_TRANSLATION_NONE)
3069 qemu_opt_set(hda_opts, "trans", "none");
3072 break;
3073 case QEMU_OPTION_numa:
3074 numa_add(optarg);
3075 break;
3076 case QEMU_OPTION_display:
3077 display_type = select_display(optarg);
3078 break;
3079 case QEMU_OPTION_nographic:
3080 display_type = DT_NOGRAPHIC;
3081 break;
3082 case QEMU_OPTION_curses:
3083 #ifdef CONFIG_CURSES
3084 display_type = DT_CURSES;
3085 #else
3086 fprintf(stderr, "Curses support is disabled\n");
3087 exit(1);
3088 #endif
3089 break;
3090 case QEMU_OPTION_portrait:
3091 graphic_rotate = 90;
3092 break;
3093 case QEMU_OPTION_rotate:
3094 graphic_rotate = strtol(optarg, (char **) &optarg, 10);
3095 if (graphic_rotate != 0 && graphic_rotate != 90 &&
3096 graphic_rotate != 180 && graphic_rotate != 270) {
3097 fprintf(stderr,
3098 "qemu: only 90, 180, 270 deg rotation is available\n");
3099 exit(1);
3101 break;
3102 case QEMU_OPTION_kernel:
3103 qemu_opts_set(qemu_find_opts("machine"), 0, "kernel", optarg);
3104 break;
3105 case QEMU_OPTION_initrd:
3106 qemu_opts_set(qemu_find_opts("machine"), 0, "initrd", optarg);
3107 break;
3108 case QEMU_OPTION_append:
3109 qemu_opts_set(qemu_find_opts("machine"), 0, "append", optarg);
3110 break;
3111 case QEMU_OPTION_dtb:
3112 qemu_opts_set(qemu_find_opts("machine"), 0, "dtb", optarg);
3113 break;
3114 case QEMU_OPTION_cdrom:
3115 drive_add(IF_DEFAULT, 2, optarg, CDROM_OPTS);
3116 break;
3117 case QEMU_OPTION_boot:
3118 opts = qemu_opts_parse(qemu_find_opts("boot-opts"), optarg, 1);
3119 if (!opts) {
3120 exit(1);
3122 break;
3123 case QEMU_OPTION_fda:
3124 case QEMU_OPTION_fdb:
3125 drive_add(IF_FLOPPY, popt->index - QEMU_OPTION_fda,
3126 optarg, FD_OPTS);
3127 break;
3128 case QEMU_OPTION_no_fd_bootchk:
3129 fd_bootchk = 0;
3130 break;
3131 case QEMU_OPTION_netdev:
3132 if (net_client_parse(qemu_find_opts("netdev"), optarg) == -1) {
3133 exit(1);
3135 break;
3136 case QEMU_OPTION_net:
3137 if (net_client_parse(qemu_find_opts("net"), optarg) == -1) {
3138 exit(1);
3140 break;
3141 #ifdef CONFIG_LIBISCSI
3142 case QEMU_OPTION_iscsi:
3143 opts = qemu_opts_parse(qemu_find_opts("iscsi"), optarg, 0);
3144 if (!opts) {
3145 exit(1);
3147 break;
3148 #endif
3149 #ifdef CONFIG_SLIRP
3150 case QEMU_OPTION_tftp:
3151 legacy_tftp_prefix = optarg;
3152 break;
3153 case QEMU_OPTION_bootp:
3154 legacy_bootp_filename = optarg;
3155 break;
3156 case QEMU_OPTION_redir:
3157 if (net_slirp_redir(optarg) < 0)
3158 exit(1);
3159 break;
3160 #endif
3161 case QEMU_OPTION_bt:
3162 add_device_config(DEV_BT, optarg);
3163 break;
3164 case QEMU_OPTION_audio_help:
3165 AUD_help ();
3166 exit (0);
3167 break;
3168 case QEMU_OPTION_soundhw:
3169 select_soundhw (optarg);
3170 break;
3171 case QEMU_OPTION_h:
3172 help(0);
3173 break;
3174 case QEMU_OPTION_version:
3175 version();
3176 exit(0);
3177 break;
3178 case QEMU_OPTION_m: {
3179 int64_t value;
3180 uint64_t sz;
3181 char *end;
3183 value = strtosz(optarg, &end);
3184 if (value < 0 || *end) {
3185 fprintf(stderr, "qemu: invalid ram size: %s\n", optarg);
3186 exit(1);
3188 sz = QEMU_ALIGN_UP((uint64_t)value, 8192);
3189 ram_size = sz;
3190 if (ram_size != sz) {
3191 fprintf(stderr, "qemu: ram size too large\n");
3192 exit(1);
3194 break;
3196 #ifdef CONFIG_TPM
3197 case QEMU_OPTION_tpmdev:
3198 if (tpm_config_parse(qemu_find_opts("tpmdev"), optarg) < 0) {
3199 exit(1);
3201 break;
3202 #endif
3203 case QEMU_OPTION_mempath:
3204 mem_path = optarg;
3205 break;
3206 #ifdef MAP_POPULATE
3207 case QEMU_OPTION_mem_prealloc:
3208 mem_prealloc = 1;
3209 break;
3210 #endif
3211 case QEMU_OPTION_d:
3212 log_mask = optarg;
3213 break;
3214 case QEMU_OPTION_D:
3215 log_file = optarg;
3216 break;
3217 case QEMU_OPTION_s:
3218 add_device_config(DEV_GDB, "tcp::" DEFAULT_GDBSTUB_PORT);
3219 break;
3220 case QEMU_OPTION_gdb:
3221 add_device_config(DEV_GDB, optarg);
3222 break;
3223 case QEMU_OPTION_L:
3224 if (data_dir_idx < ARRAY_SIZE(data_dir)) {
3225 data_dir[data_dir_idx++] = optarg;
3227 break;
3228 case QEMU_OPTION_bios:
3229 bios_name = optarg;
3230 break;
3231 case QEMU_OPTION_singlestep:
3232 singlestep = 1;
3233 break;
3234 case QEMU_OPTION_S:
3235 autostart = 0;
3236 break;
3237 case QEMU_OPTION_k:
3238 keyboard_layout = optarg;
3239 break;
3240 case QEMU_OPTION_localtime:
3241 rtc_utc = 0;
3242 break;
3243 case QEMU_OPTION_vga:
3244 vga_model = optarg;
3245 default_vga = 0;
3246 break;
3247 case QEMU_OPTION_g:
3249 const char *p;
3250 int w, h, depth;
3251 p = optarg;
3252 w = strtol(p, (char **)&p, 10);
3253 if (w <= 0) {
3254 graphic_error:
3255 fprintf(stderr, "qemu: invalid resolution or depth\n");
3256 exit(1);
3258 if (*p != 'x')
3259 goto graphic_error;
3260 p++;
3261 h = strtol(p, (char **)&p, 10);
3262 if (h <= 0)
3263 goto graphic_error;
3264 if (*p == 'x') {
3265 p++;
3266 depth = strtol(p, (char **)&p, 10);
3267 if (depth != 8 && depth != 15 && depth != 16 &&
3268 depth != 24 && depth != 32)
3269 goto graphic_error;
3270 } else if (*p == '\0') {
3271 depth = graphic_depth;
3272 } else {
3273 goto graphic_error;
3276 graphic_width = w;
3277 graphic_height = h;
3278 graphic_depth = depth;
3280 break;
3281 case QEMU_OPTION_echr:
3283 char *r;
3284 term_escape_char = strtol(optarg, &r, 0);
3285 if (r == optarg)
3286 printf("Bad argument to echr\n");
3287 break;
3289 case QEMU_OPTION_monitor:
3290 default_monitor = 0;
3291 if (strncmp(optarg, "none", 4)) {
3292 monitor_parse(optarg, "readline");
3294 break;
3295 case QEMU_OPTION_qmp:
3296 monitor_parse(optarg, "control");
3297 default_monitor = 0;
3298 break;
3299 case QEMU_OPTION_mon:
3300 opts = qemu_opts_parse(qemu_find_opts("mon"), optarg, 1);
3301 if (!opts) {
3302 exit(1);
3304 default_monitor = 0;
3305 break;
3306 case QEMU_OPTION_chardev:
3307 opts = qemu_opts_parse(qemu_find_opts("chardev"), optarg, 1);
3308 if (!opts) {
3309 exit(1);
3311 break;
3312 case QEMU_OPTION_fsdev:
3313 olist = qemu_find_opts("fsdev");
3314 if (!olist) {
3315 fprintf(stderr, "fsdev is not supported by this qemu build.\n");
3316 exit(1);
3318 opts = qemu_opts_parse(olist, optarg, 1);
3319 if (!opts) {
3320 exit(1);
3322 break;
3323 case QEMU_OPTION_virtfs: {
3324 QemuOpts *fsdev;
3325 QemuOpts *device;
3326 const char *writeout, *sock_fd, *socket;
3328 olist = qemu_find_opts("virtfs");
3329 if (!olist) {
3330 fprintf(stderr, "virtfs is not supported by this qemu build.\n");
3331 exit(1);
3333 opts = qemu_opts_parse(olist, optarg, 1);
3334 if (!opts) {
3335 exit(1);
3338 if (qemu_opt_get(opts, "fsdriver") == NULL ||
3339 qemu_opt_get(opts, "mount_tag") == NULL) {
3340 fprintf(stderr, "Usage: -virtfs fsdriver,mount_tag=tag.\n");
3341 exit(1);
3343 fsdev = qemu_opts_create(qemu_find_opts("fsdev"),
3344 qemu_opt_get(opts, "mount_tag"),
3345 1, NULL);
3346 if (!fsdev) {
3347 fprintf(stderr, "duplicate fsdev id: %s\n",
3348 qemu_opt_get(opts, "mount_tag"));
3349 exit(1);
3352 writeout = qemu_opt_get(opts, "writeout");
3353 if (writeout) {
3354 #ifdef CONFIG_SYNC_FILE_RANGE
3355 qemu_opt_set(fsdev, "writeout", writeout);
3356 #else
3357 fprintf(stderr, "writeout=immediate not supported on "
3358 "this platform\n");
3359 exit(1);
3360 #endif
3362 qemu_opt_set(fsdev, "fsdriver", qemu_opt_get(opts, "fsdriver"));
3363 qemu_opt_set(fsdev, "path", qemu_opt_get(opts, "path"));
3364 qemu_opt_set(fsdev, "security_model",
3365 qemu_opt_get(opts, "security_model"));
3366 socket = qemu_opt_get(opts, "socket");
3367 if (socket) {
3368 qemu_opt_set(fsdev, "socket", socket);
3370 sock_fd = qemu_opt_get(opts, "sock_fd");
3371 if (sock_fd) {
3372 qemu_opt_set(fsdev, "sock_fd", sock_fd);
3375 qemu_opt_set_bool(fsdev, "readonly",
3376 qemu_opt_get_bool(opts, "readonly", 0));
3377 device = qemu_opts_create_nofail(qemu_find_opts("device"));
3378 qemu_opt_set(device, "driver", "virtio-9p-pci");
3379 qemu_opt_set(device, "fsdev",
3380 qemu_opt_get(opts, "mount_tag"));
3381 qemu_opt_set(device, "mount_tag",
3382 qemu_opt_get(opts, "mount_tag"));
3383 break;
3385 case QEMU_OPTION_virtfs_synth: {
3386 QemuOpts *fsdev;
3387 QemuOpts *device;
3389 fsdev = qemu_opts_create(qemu_find_opts("fsdev"), "v_synth",
3390 1, NULL);
3391 if (!fsdev) {
3392 fprintf(stderr, "duplicate option: %s\n", "virtfs_synth");
3393 exit(1);
3395 qemu_opt_set(fsdev, "fsdriver", "synth");
3397 device = qemu_opts_create_nofail(qemu_find_opts("device"));
3398 qemu_opt_set(device, "driver", "virtio-9p-pci");
3399 qemu_opt_set(device, "fsdev", "v_synth");
3400 qemu_opt_set(device, "mount_tag", "v_synth");
3401 break;
3403 case QEMU_OPTION_serial:
3404 add_device_config(DEV_SERIAL, optarg);
3405 default_serial = 0;
3406 if (strncmp(optarg, "mon:", 4) == 0) {
3407 default_monitor = 0;
3409 break;
3410 case QEMU_OPTION_watchdog:
3411 if (watchdog) {
3412 fprintf(stderr,
3413 "qemu: only one watchdog option may be given\n");
3414 return 1;
3416 watchdog = optarg;
3417 break;
3418 case QEMU_OPTION_watchdog_action:
3419 if (select_watchdog_action(optarg) == -1) {
3420 fprintf(stderr, "Unknown -watchdog-action parameter\n");
3421 exit(1);
3423 break;
3424 case QEMU_OPTION_virtiocon:
3425 add_device_config(DEV_VIRTCON, optarg);
3426 default_virtcon = 0;
3427 if (strncmp(optarg, "mon:", 4) == 0) {
3428 default_monitor = 0;
3430 break;
3431 case QEMU_OPTION_parallel:
3432 add_device_config(DEV_PARALLEL, optarg);
3433 default_parallel = 0;
3434 if (strncmp(optarg, "mon:", 4) == 0) {
3435 default_monitor = 0;
3437 break;
3438 case QEMU_OPTION_debugcon:
3439 add_device_config(DEV_DEBUGCON, optarg);
3440 break;
3441 case QEMU_OPTION_loadvm:
3442 loadvm = optarg;
3443 break;
3444 case QEMU_OPTION_full_screen:
3445 full_screen = 1;
3446 break;
3447 case QEMU_OPTION_no_frame:
3448 no_frame = 1;
3449 break;
3450 case QEMU_OPTION_alt_grab:
3451 alt_grab = 1;
3452 break;
3453 case QEMU_OPTION_ctrl_grab:
3454 ctrl_grab = 1;
3455 break;
3456 case QEMU_OPTION_no_quit:
3457 no_quit = 1;
3458 break;
3459 case QEMU_OPTION_sdl:
3460 #ifdef CONFIG_SDL
3461 display_type = DT_SDL;
3462 break;
3463 #else
3464 fprintf(stderr, "SDL support is disabled\n");
3465 exit(1);
3466 #endif
3467 case QEMU_OPTION_pidfile:
3468 pid_file = optarg;
3469 break;
3470 case QEMU_OPTION_win2k_hack:
3471 win2k_install_hack = 1;
3472 break;
3473 case QEMU_OPTION_rtc_td_hack: {
3474 static GlobalProperty slew_lost_ticks[] = {
3476 .driver = "mc146818rtc",
3477 .property = "lost_tick_policy",
3478 .value = "slew",
3480 { /* end of list */ }
3483 qdev_prop_register_global_list(slew_lost_ticks);
3484 break;
3486 case QEMU_OPTION_acpitable:
3487 opts = qemu_opts_parse(qemu_find_opts("acpi"), optarg, 1);
3488 g_assert(opts != NULL);
3489 do_acpitable_option(opts);
3490 break;
3491 case QEMU_OPTION_smbios:
3492 opts = qemu_opts_parse(qemu_find_opts("smbios"), optarg, 0);
3493 do_smbios_option(opts);
3494 break;
3495 case QEMU_OPTION_enable_kvm:
3496 olist = qemu_find_opts("machine");
3497 qemu_opts_parse(olist, "accel=kvm", 0);
3498 break;
3499 case QEMU_OPTION_machine:
3500 olist = qemu_find_opts("machine");
3501 opts = qemu_opts_parse(olist, optarg, 1);
3502 if (!opts) {
3503 exit(1);
3505 optarg = qemu_opt_get(opts, "type");
3506 if (optarg) {
3507 machine = machine_parse(optarg);
3509 break;
3510 case QEMU_OPTION_no_kvm:
3511 olist = qemu_find_opts("machine");
3512 qemu_opts_parse(olist, "accel=tcg", 0);
3513 break;
3514 case QEMU_OPTION_no_kvm_pit: {
3515 fprintf(stderr, "Warning: KVM PIT can no longer be disabled "
3516 "separately.\n");
3517 break;
3519 case QEMU_OPTION_no_kvm_pit_reinjection: {
3520 static GlobalProperty kvm_pit_lost_tick_policy[] = {
3522 .driver = "kvm-pit",
3523 .property = "lost_tick_policy",
3524 .value = "discard",
3526 { /* end of list */ }
3529 fprintf(stderr, "Warning: option deprecated, use "
3530 "lost_tick_policy property of kvm-pit instead.\n");
3531 qdev_prop_register_global_list(kvm_pit_lost_tick_policy);
3532 break;
3534 case QEMU_OPTION_usb:
3535 olist = qemu_find_opts("machine");
3536 qemu_opts_parse(olist, "usb=on", 0);
3537 break;
3538 case QEMU_OPTION_usbdevice:
3539 olist = qemu_find_opts("machine");
3540 qemu_opts_parse(olist, "usb=on", 0);
3541 add_device_config(DEV_USB, optarg);
3542 break;
3543 case QEMU_OPTION_device:
3544 if (!qemu_opts_parse(qemu_find_opts("device"), optarg, 1)) {
3545 exit(1);
3547 break;
3548 case QEMU_OPTION_smp:
3549 if (!qemu_opts_parse(qemu_find_opts("smp-opts"), optarg, 1)) {
3550 exit(1);
3552 break;
3553 case QEMU_OPTION_vnc:
3554 #ifdef CONFIG_VNC
3555 display_remote++;
3556 vnc_display = optarg;
3557 #else
3558 fprintf(stderr, "VNC support is disabled\n");
3559 exit(1);
3560 #endif
3561 break;
3562 case QEMU_OPTION_no_acpi:
3563 acpi_enabled = 0;
3564 break;
3565 case QEMU_OPTION_no_hpet:
3566 no_hpet = 1;
3567 break;
3568 case QEMU_OPTION_balloon:
3569 if (balloon_parse(optarg) < 0) {
3570 fprintf(stderr, "Unknown -balloon argument %s\n", optarg);
3571 exit(1);
3573 break;
3574 case QEMU_OPTION_no_reboot:
3575 no_reboot = 1;
3576 break;
3577 case QEMU_OPTION_no_shutdown:
3578 no_shutdown = 1;
3579 break;
3580 case QEMU_OPTION_show_cursor:
3581 cursor_hide = 0;
3582 break;
3583 case QEMU_OPTION_uuid:
3584 if(qemu_uuid_parse(optarg, qemu_uuid) < 0) {
3585 fprintf(stderr, "Fail to parse UUID string."
3586 " Wrong format.\n");
3587 exit(1);
3589 qemu_uuid_set = true;
3590 break;
3591 case QEMU_OPTION_option_rom:
3592 if (nb_option_roms >= MAX_OPTION_ROMS) {
3593 fprintf(stderr, "Too many option ROMs\n");
3594 exit(1);
3596 opts = qemu_opts_parse(qemu_find_opts("option-rom"), optarg, 1);
3597 if (!opts) {
3598 exit(1);
3600 option_rom[nb_option_roms].name = qemu_opt_get(opts, "romfile");
3601 option_rom[nb_option_roms].bootindex =
3602 qemu_opt_get_number(opts, "bootindex", -1);
3603 if (!option_rom[nb_option_roms].name) {
3604 fprintf(stderr, "Option ROM file is not specified\n");
3605 exit(1);
3607 nb_option_roms++;
3608 break;
3609 case QEMU_OPTION_semihosting:
3610 semihosting_enabled = 1;
3611 break;
3612 case QEMU_OPTION_tdf:
3613 fprintf(stderr, "Warning: user space PIT time drift fix "
3614 "is no longer supported.\n");
3615 break;
3616 case QEMU_OPTION_name:
3617 qemu_name = g_strdup(optarg);
3619 char *p = strchr(qemu_name, ',');
3620 if (p != NULL) {
3621 *p++ = 0;
3622 if (strncmp(p, "process=", 8)) {
3623 fprintf(stderr, "Unknown subargument %s to -name\n", p);
3624 exit(1);
3626 p += 8;
3627 os_set_proc_name(p);
3630 break;
3631 case QEMU_OPTION_prom_env:
3632 if (nb_prom_envs >= MAX_PROM_ENVS) {
3633 fprintf(stderr, "Too many prom variables\n");
3634 exit(1);
3636 prom_envs[nb_prom_envs] = optarg;
3637 nb_prom_envs++;
3638 break;
3639 case QEMU_OPTION_old_param:
3640 old_param = 1;
3641 break;
3642 case QEMU_OPTION_clock:
3643 /* Clock options no longer exist. Keep this option for
3644 * backward compatibility.
3646 break;
3647 case QEMU_OPTION_startdate:
3648 configure_rtc_date_offset(optarg, 1);
3649 break;
3650 case QEMU_OPTION_rtc:
3651 opts = qemu_opts_parse(qemu_find_opts("rtc"), optarg, 0);
3652 if (!opts) {
3653 exit(1);
3655 configure_rtc(opts);
3656 break;
3657 case QEMU_OPTION_tb_size:
3658 tcg_tb_size = strtol(optarg, NULL, 0);
3659 if (tcg_tb_size < 0) {
3660 tcg_tb_size = 0;
3662 break;
3663 case QEMU_OPTION_icount:
3664 icount_option = optarg;
3665 break;
3666 case QEMU_OPTION_incoming:
3667 incoming = optarg;
3668 runstate_set(RUN_STATE_INMIGRATE);
3669 break;
3670 case QEMU_OPTION_nodefaults:
3671 default_serial = 0;
3672 default_parallel = 0;
3673 default_virtcon = 0;
3674 default_sclp = 0;
3675 default_monitor = 0;
3676 default_net = 0;
3677 default_floppy = 0;
3678 default_cdrom = 0;
3679 default_sdcard = 0;
3680 default_vga = 0;
3681 break;
3682 case QEMU_OPTION_xen_domid:
3683 if (!(xen_available())) {
3684 printf("Option %s not supported for this target\n", popt->name);
3685 exit(1);
3687 xen_domid = atoi(optarg);
3688 break;
3689 case QEMU_OPTION_xen_create:
3690 if (!(xen_available())) {
3691 printf("Option %s not supported for this target\n", popt->name);
3692 exit(1);
3694 xen_mode = XEN_CREATE;
3695 break;
3696 case QEMU_OPTION_xen_attach:
3697 if (!(xen_available())) {
3698 printf("Option %s not supported for this target\n", popt->name);
3699 exit(1);
3701 xen_mode = XEN_ATTACH;
3702 break;
3703 case QEMU_OPTION_trace:
3705 opts = qemu_opts_parse(qemu_find_opts("trace"), optarg, 0);
3706 if (!opts) {
3707 exit(1);
3709 trace_events = qemu_opt_get(opts, "events");
3710 trace_file = qemu_opt_get(opts, "file");
3711 break;
3713 case QEMU_OPTION_readconfig:
3715 int ret = qemu_read_config_file(optarg);
3716 if (ret < 0) {
3717 fprintf(stderr, "read config %s: %s\n", optarg,
3718 strerror(-ret));
3719 exit(1);
3721 break;
3723 case QEMU_OPTION_spice:
3724 olist = qemu_find_opts("spice");
3725 if (!olist) {
3726 fprintf(stderr, "spice is not supported by this qemu build.\n");
3727 exit(1);
3729 opts = qemu_opts_parse(olist, optarg, 0);
3730 if (!opts) {
3731 exit(1);
3733 display_remote++;
3734 break;
3735 case QEMU_OPTION_writeconfig:
3737 FILE *fp;
3738 if (strcmp(optarg, "-") == 0) {
3739 fp = stdout;
3740 } else {
3741 fp = fopen(optarg, "w");
3742 if (fp == NULL) {
3743 fprintf(stderr, "open %s: %s\n", optarg, strerror(errno));
3744 exit(1);
3747 qemu_config_write(fp);
3748 fclose(fp);
3749 break;
3751 case QEMU_OPTION_qtest:
3752 qtest_chrdev = optarg;
3753 break;
3754 case QEMU_OPTION_qtest_log:
3755 qtest_log = optarg;
3756 break;
3757 case QEMU_OPTION_sandbox:
3758 opts = qemu_opts_parse(qemu_find_opts("sandbox"), optarg, 1);
3759 if (!opts) {
3760 exit(1);
3762 break;
3763 case QEMU_OPTION_add_fd:
3764 #ifndef _WIN32
3765 opts = qemu_opts_parse(qemu_find_opts("add-fd"), optarg, 0);
3766 if (!opts) {
3767 exit(1);
3769 #else
3770 error_report("File descriptor passing is disabled on this "
3771 "platform");
3772 exit(1);
3773 #endif
3774 break;
3775 case QEMU_OPTION_object:
3776 opts = qemu_opts_parse(qemu_find_opts("object"), optarg, 1);
3777 if (!opts) {
3778 exit(1);
3780 break;
3781 case QEMU_OPTION_realtime:
3782 opts = qemu_opts_parse(qemu_find_opts("realtime"), optarg, 0);
3783 if (!opts) {
3784 exit(1);
3786 configure_realtime(opts);
3787 break;
3788 case QEMU_OPTION_msg:
3789 opts = qemu_opts_parse(qemu_find_opts("msg"), optarg, 0);
3790 if (!opts) {
3791 exit(1);
3793 configure_msg(opts);
3794 break;
3795 default:
3796 os_parse_cmd_args(popt->index, optarg);
3800 loc_set_none();
3802 if (qemu_init_main_loop()) {
3803 fprintf(stderr, "qemu_init_main_loop failed\n");
3804 exit(1);
3807 if (qemu_opts_foreach(qemu_find_opts("sandbox"), parse_sandbox, NULL, 0)) {
3808 exit(1);
3811 #ifndef _WIN32
3812 if (qemu_opts_foreach(qemu_find_opts("add-fd"), parse_add_fd, NULL, 1)) {
3813 exit(1);
3816 if (qemu_opts_foreach(qemu_find_opts("add-fd"), cleanup_add_fd, NULL, 1)) {
3817 exit(1);
3819 #endif
3821 if (machine == NULL) {
3822 fprintf(stderr, "No machine found.\n");
3823 exit(1);
3826 if (machine->hw_version) {
3827 qemu_set_version(machine->hw_version);
3830 if (qemu_opts_foreach(qemu_find_opts("object"),
3831 object_create, NULL, 0) != 0) {
3832 exit(1);
3835 /* Init CPU def lists, based on config
3836 * - Must be called after all the qemu_read_config_file() calls
3837 * - Must be called before list_cpus()
3838 * - Must be called before machine->init()
3840 cpudef_init();
3842 if (cpu_model && is_help_option(cpu_model)) {
3843 list_cpus(stdout, &fprintf, cpu_model);
3844 exit(0);
3847 /* Open the logfile at this point, if necessary. We can't open the logfile
3848 * when encountering either of the logging options (-d or -D) because the
3849 * other one may be encountered later on the command line, changing the
3850 * location or level of logging.
3852 if (log_mask) {
3853 int mask;
3854 if (log_file) {
3855 qemu_set_log_filename(log_file);
3858 mask = qemu_str_to_log_mask(log_mask);
3859 if (!mask) {
3860 qemu_print_log_usage(stdout);
3861 exit(1);
3863 qemu_set_log(mask);
3866 if (!trace_backend_init(trace_events, trace_file)) {
3867 exit(1);
3870 /* If no data_dir is specified then try to find it relative to the
3871 executable path. */
3872 if (data_dir_idx < ARRAY_SIZE(data_dir)) {
3873 data_dir[data_dir_idx] = os_find_datadir(argv[0]);
3874 if (data_dir[data_dir_idx] != NULL) {
3875 data_dir_idx++;
3878 /* If all else fails use the install path specified when building. */
3879 if (data_dir_idx < ARRAY_SIZE(data_dir)) {
3880 data_dir[data_dir_idx++] = CONFIG_QEMU_DATADIR;
3883 smp_parse(qemu_opts_find(qemu_find_opts("smp-opts"), NULL));
3885 machine->max_cpus = machine->max_cpus ?: 1; /* Default to UP */
3886 if (smp_cpus > machine->max_cpus) {
3887 fprintf(stderr, "Number of SMP cpus requested (%d), exceeds max cpus "
3888 "supported by machine `%s' (%d)\n", smp_cpus, machine->name,
3889 machine->max_cpus);
3890 exit(1);
3894 * Get the default machine options from the machine if it is not already
3895 * specified either by the configuration file or by the command line.
3897 if (machine->default_machine_opts) {
3898 qemu_opts_set_defaults(qemu_find_opts("machine"),
3899 machine->default_machine_opts, 0);
3902 qemu_opts_foreach(qemu_find_opts("device"), default_driver_check, NULL, 0);
3903 qemu_opts_foreach(qemu_find_opts("global"), default_driver_check, NULL, 0);
3905 if (machine->no_serial) {
3906 default_serial = 0;
3908 if (machine->no_parallel) {
3909 default_parallel = 0;
3911 if (!machine->use_virtcon) {
3912 default_virtcon = 0;
3914 if (!machine->use_sclp) {
3915 default_sclp = 0;
3917 if (machine->no_floppy) {
3918 default_floppy = 0;
3920 if (machine->no_cdrom) {
3921 default_cdrom = 0;
3923 if (machine->no_sdcard) {
3924 default_sdcard = 0;
3927 if (is_daemonized()) {
3928 /* According to documentation and historically, -nographic redirects
3929 * serial port, parallel port and monitor to stdio, which does not work
3930 * with -daemonize. We can redirect these to null instead, but since
3931 * -nographic is legacy, let's just error out.
3932 * We disallow -nographic only if all other ports are not redirected
3933 * explicitly, to not break existing legacy setups which uses
3934 * -nographic _and_ redirects all ports explicitly - this is valid
3935 * usage, -nographic is just a no-op in this case.
3937 if (display_type == DT_NOGRAPHIC
3938 && (default_parallel || default_serial
3939 || default_monitor || default_virtcon)) {
3940 fprintf(stderr, "-nographic can not be used with -daemonize\n");
3941 exit(1);
3943 #ifdef CONFIG_CURSES
3944 if (display_type == DT_CURSES) {
3945 fprintf(stderr, "curses display can not be used with -daemonize\n");
3946 exit(1);
3948 #endif
3951 if (display_type == DT_NOGRAPHIC) {
3952 if (default_parallel)
3953 add_device_config(DEV_PARALLEL, "null");
3954 if (default_serial && default_monitor) {
3955 add_device_config(DEV_SERIAL, "mon:stdio");
3956 } else if (default_virtcon && default_monitor) {
3957 add_device_config(DEV_VIRTCON, "mon:stdio");
3958 } else if (default_sclp && default_monitor) {
3959 add_device_config(DEV_SCLP, "mon:stdio");
3960 } else {
3961 if (default_serial)
3962 add_device_config(DEV_SERIAL, "stdio");
3963 if (default_virtcon)
3964 add_device_config(DEV_VIRTCON, "stdio");
3965 if (default_sclp) {
3966 add_device_config(DEV_SCLP, "stdio");
3968 if (default_monitor)
3969 monitor_parse("stdio", "readline");
3971 } else {
3972 if (default_serial)
3973 add_device_config(DEV_SERIAL, "vc:80Cx24C");
3974 if (default_parallel)
3975 add_device_config(DEV_PARALLEL, "vc:80Cx24C");
3976 if (default_monitor)
3977 monitor_parse("vc:80Cx24C", "readline");
3978 if (default_virtcon)
3979 add_device_config(DEV_VIRTCON, "vc:80Cx24C");
3980 if (default_sclp) {
3981 add_device_config(DEV_SCLP, "vc:80Cx24C");
3985 if (display_type == DT_DEFAULT && !display_remote) {
3986 #if defined(CONFIG_GTK)
3987 display_type = DT_GTK;
3988 #elif defined(CONFIG_SDL) || defined(CONFIG_COCOA)
3989 display_type = DT_SDL;
3990 #elif defined(CONFIG_VNC)
3991 vnc_display = "localhost:0,to=99";
3992 show_vnc_port = 1;
3993 #else
3994 display_type = DT_NONE;
3995 #endif
3998 if ((no_frame || alt_grab || ctrl_grab) && display_type != DT_SDL) {
3999 fprintf(stderr, "-no-frame, -alt-grab and -ctrl-grab are only valid "
4000 "for SDL, ignoring option\n");
4002 if (no_quit && (display_type != DT_GTK && display_type != DT_SDL)) {
4003 fprintf(stderr, "-no-quit is only valid for GTK and SDL, "
4004 "ignoring option\n");
4007 #if defined(CONFIG_GTK)
4008 if (display_type == DT_GTK) {
4009 early_gtk_display_init();
4011 #endif
4013 socket_init();
4015 if (qemu_opts_foreach(qemu_find_opts("chardev"), chardev_init_func, NULL, 1) != 0)
4016 exit(1);
4017 #ifdef CONFIG_VIRTFS
4018 if (qemu_opts_foreach(qemu_find_opts("fsdev"), fsdev_init_func, NULL, 1) != 0) {
4019 exit(1);
4021 #endif
4023 os_daemonize();
4025 if (pid_file && qemu_create_pidfile(pid_file) != 0) {
4026 os_pidfile_error();
4027 exit(1);
4030 /* init the memory */
4031 if (ram_size == 0) {
4032 ram_size = DEFAULT_RAM_SIZE * 1024 * 1024;
4035 if (qemu_opts_foreach(qemu_find_opts("device"), device_help_func, NULL, 0)
4036 != 0) {
4037 exit(0);
4040 configure_accelerator();
4042 if (!qtest_enabled() && qtest_chrdev) {
4043 qtest_init();
4046 machine_opts = qemu_get_machine_opts();
4047 kernel_filename = qemu_opt_get(machine_opts, "kernel");
4048 initrd_filename = qemu_opt_get(machine_opts, "initrd");
4049 kernel_cmdline = qemu_opt_get(machine_opts, "append");
4051 boot_order = machine->default_boot_order;
4052 opts = qemu_opts_find(qemu_find_opts("boot-opts"), NULL);
4053 if (opts) {
4054 char *normal_boot_order;
4055 const char *order, *once;
4057 order = qemu_opt_get(opts, "order");
4058 if (order) {
4059 validate_bootdevices(order);
4060 boot_order = order;
4063 once = qemu_opt_get(opts, "once");
4064 if (once) {
4065 validate_bootdevices(once);
4066 normal_boot_order = g_strdup(boot_order);
4067 boot_order = once;
4068 qemu_register_reset(restore_boot_order, normal_boot_order);
4071 boot_menu = qemu_opt_get_bool(opts, "menu", boot_menu);
4074 if (!kernel_cmdline) {
4075 kernel_cmdline = "";
4078 linux_boot = (kernel_filename != NULL);
4080 if (!linux_boot && *kernel_cmdline != '\0') {
4081 fprintf(stderr, "-append only allowed with -kernel option\n");
4082 exit(1);
4085 if (!linux_boot && initrd_filename != NULL) {
4086 fprintf(stderr, "-initrd only allowed with -kernel option\n");
4087 exit(1);
4090 if (!linux_boot && qemu_opt_get(machine_opts, "dtb")) {
4091 fprintf(stderr, "-dtb only allowed with -kernel option\n");
4092 exit(1);
4095 os_set_line_buffering();
4097 qemu_init_cpu_loop();
4098 qemu_mutex_lock_iothread();
4100 #ifdef CONFIG_SPICE
4101 /* spice needs the timers to be initialized by this point */
4102 qemu_spice_init();
4103 #endif
4105 if (icount_option && (kvm_enabled() || xen_enabled())) {
4106 fprintf(stderr, "-icount is not allowed with kvm or xen\n");
4107 exit(1);
4109 configure_icount(icount_option);
4111 /* clean up network at qemu process termination */
4112 atexit(&net_cleanup);
4114 if (net_init_clients() < 0) {
4115 exit(1);
4118 #ifdef CONFIG_TPM
4119 if (tpm_init() < 0) {
4120 exit(1);
4122 #endif
4124 /* init the bluetooth world */
4125 if (foreach_device_config(DEV_BT, bt_parse))
4126 exit(1);
4128 if (!xen_enabled()) {
4129 /* On 32-bit hosts, QEMU is limited by virtual address space */
4130 if (ram_size > (2047 << 20) && HOST_LONG_BITS == 32) {
4131 fprintf(stderr, "qemu: at most 2047 MB RAM can be simulated\n");
4132 exit(1);
4136 cpu_exec_init_all();
4138 blk_mig_init();
4140 /* open the virtual block devices */
4141 if (snapshot)
4142 qemu_opts_foreach(qemu_find_opts("drive"), drive_enable_snapshot, NULL, 0);
4143 if (qemu_opts_foreach(qemu_find_opts("drive"), drive_init_func,
4144 &machine->block_default_type, 1) != 0) {
4145 exit(1);
4148 default_drive(default_cdrom, snapshot, machine->block_default_type, 2,
4149 CDROM_OPTS);
4150 default_drive(default_floppy, snapshot, IF_FLOPPY, 0, FD_OPTS);
4151 default_drive(default_sdcard, snapshot, IF_SD, 0, SD_OPTS);
4153 register_savevm_live(NULL, "ram", 0, 4, &savevm_ram_handlers, NULL);
4155 if (nb_numa_nodes > 0) {
4156 int i;
4158 if (nb_numa_nodes > MAX_NODES) {
4159 nb_numa_nodes = MAX_NODES;
4162 /* If no memory size if given for any node, assume the default case
4163 * and distribute the available memory equally across all nodes
4165 for (i = 0; i < nb_numa_nodes; i++) {
4166 if (node_mem[i] != 0)
4167 break;
4169 if (i == nb_numa_nodes) {
4170 uint64_t usedmem = 0;
4172 /* On Linux, the each node's border has to be 8MB aligned,
4173 * the final node gets the rest.
4175 for (i = 0; i < nb_numa_nodes - 1; i++) {
4176 node_mem[i] = (ram_size / nb_numa_nodes) & ~((1 << 23UL) - 1);
4177 usedmem += node_mem[i];
4179 node_mem[i] = ram_size - usedmem;
4182 for (i = 0; i < nb_numa_nodes; i++) {
4183 if (!bitmap_empty(node_cpumask[i], MAX_CPUMASK_BITS)) {
4184 break;
4187 /* assigning the VCPUs round-robin is easier to implement, guest OSes
4188 * must cope with this anyway, because there are BIOSes out there in
4189 * real machines which also use this scheme.
4191 if (i == nb_numa_nodes) {
4192 for (i = 0; i < max_cpus; i++) {
4193 set_bit(i, node_cpumask[i % nb_numa_nodes]);
4198 if (qemu_opts_foreach(qemu_find_opts("mon"), mon_init_func, NULL, 1) != 0) {
4199 exit(1);
4202 if (foreach_device_config(DEV_SERIAL, serial_parse) < 0)
4203 exit(1);
4204 if (foreach_device_config(DEV_PARALLEL, parallel_parse) < 0)
4205 exit(1);
4206 if (foreach_device_config(DEV_VIRTCON, virtcon_parse) < 0)
4207 exit(1);
4208 if (foreach_device_config(DEV_SCLP, sclp_parse) < 0) {
4209 exit(1);
4211 if (foreach_device_config(DEV_DEBUGCON, debugcon_parse) < 0)
4212 exit(1);
4214 /* If no default VGA is requested, the default is "none". */
4215 if (default_vga) {
4216 if (cirrus_vga_available()) {
4217 vga_model = "cirrus";
4218 } else if (vga_available()) {
4219 vga_model = "std";
4222 select_vgahw(vga_model);
4224 if (watchdog) {
4225 i = select_watchdog(watchdog);
4226 if (i > 0)
4227 exit (i == 1 ? 1 : 0);
4230 if (machine->compat_props) {
4231 qdev_prop_register_global_list(machine->compat_props);
4233 qemu_add_globals();
4235 qdev_machine_init();
4237 QEMUMachineInitArgs args = { .ram_size = ram_size,
4238 .boot_order = boot_order,
4239 .kernel_filename = kernel_filename,
4240 .kernel_cmdline = kernel_cmdline,
4241 .initrd_filename = initrd_filename,
4242 .cpu_model = cpu_model };
4243 machine->init(&args);
4245 audio_init();
4247 cpu_synchronize_all_post_init();
4249 set_numa_modes();
4251 current_machine = machine;
4253 /* init USB devices */
4254 if (usb_enabled(false)) {
4255 if (foreach_device_config(DEV_USB, usb_parse) < 0)
4256 exit(1);
4259 /* init generic devices */
4260 if (qemu_opts_foreach(qemu_find_opts("device"), device_init_func, NULL, 1) != 0)
4261 exit(1);
4263 net_check_clients();
4265 ds = init_displaystate();
4267 /* init local displays */
4268 switch (display_type) {
4269 case DT_NOGRAPHIC:
4270 break;
4271 #if defined(CONFIG_CURSES)
4272 case DT_CURSES:
4273 curses_display_init(ds, full_screen);
4274 break;
4275 #endif
4276 #if defined(CONFIG_SDL)
4277 case DT_SDL:
4278 sdl_display_init(ds, full_screen, no_frame);
4279 break;
4280 #elif defined(CONFIG_COCOA)
4281 case DT_SDL:
4282 cocoa_display_init(ds, full_screen);
4283 break;
4284 #endif
4285 #if defined(CONFIG_GTK)
4286 case DT_GTK:
4287 gtk_display_init(ds, full_screen);
4288 break;
4289 #endif
4290 default:
4291 break;
4294 /* must be after terminal init, SDL library changes signal handlers */
4295 os_setup_signal_handling();
4297 #ifdef CONFIG_VNC
4298 /* init remote displays */
4299 if (vnc_display) {
4300 Error *local_err = NULL;
4301 vnc_display_init(ds);
4302 vnc_display_open(ds, vnc_display, &local_err);
4303 if (local_err != NULL) {
4304 error_report("Failed to start VNC server on `%s': %s",
4305 vnc_display, error_get_pretty(local_err));
4306 error_free(local_err);
4307 exit(1);
4310 if (show_vnc_port) {
4311 printf("VNC server running on `%s'\n", vnc_display_local_addr(ds));
4314 #endif
4315 #ifdef CONFIG_SPICE
4316 if (using_spice) {
4317 qemu_spice_display_init();
4319 #endif
4321 if (foreach_device_config(DEV_GDB, gdbserver_start) < 0) {
4322 exit(1);
4325 qdev_machine_creation_done();
4327 if (rom_load_all() != 0) {
4328 fprintf(stderr, "rom loading failed\n");
4329 exit(1);
4332 /* TODO: once all bus devices are qdevified, this should be done
4333 * when bus is created by qdev.c */
4334 qemu_register_reset(qbus_reset_all_fn, sysbus_get_default());
4335 qemu_run_machine_init_done_notifiers();
4337 /* Done notifiers can load ROMs */
4338 rom_load_done();
4340 qemu_system_reset(VMRESET_SILENT);
4341 if (loadvm) {
4342 if (load_vmstate(loadvm) < 0) {
4343 autostart = 0;
4347 if (incoming) {
4348 Error *local_err = NULL;
4349 qemu_start_incoming_migration(incoming, &local_err);
4350 if (local_err) {
4351 error_report("-incoming %s: %s", incoming,
4352 error_get_pretty(local_err));
4353 error_free(local_err);
4354 exit(1);
4356 } else if (autostart) {
4357 vm_start();
4360 os_setup_post();
4362 main_loop();
4363 bdrv_close_all();
4364 pause_all_vcpus();
4365 res_free();
4366 #ifdef CONFIG_TPM
4367 tpm_cleanup();
4368 #endif
4370 return 0;